Representative before the EPO

Technology company logo thumb
no operation time available
2 offices
Technology Company

Britta Siegers has worked on the following 43 EPO patent applications which have been published in the last five years:

EP11720517

BIOBASED CARBODIIMIDES, A PROCESS FOR PREPARATION THEREOF AND USE THEREOF

IPC classification:
C07C 267/00, C08G 18/28, C08G 18/36, C08G 18/42, C08G 18/79, C08K 5/00, C08K 5/29
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
The patent has been granted
EP11178233

New films for solar cells

IPC classification:
C08J 5/18, C08L 67/00, C08L 79/00, H01L 31/00, H01L 31/04, H01L 31/048
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP11180252

Filler compositions for rubber mixtures

IPC classification:
B60C 1/00, C08K 3/36, C08K 5/00, C08K 5/17, C08K 5/5398, C08K 5/548, C08K 13/02, C08L 7/00, C08L 9/00, C08L 21/00
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP11175837

Method for determining the quality of unlinked rubber mixtures and corresponding device

IPC classification:
B29C 47/92, G01N 29/07, G01N 29/11, G01N 33/44
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP11194923

Method for dust-free manufacture of master batches containing nano-particles (CNT) in high viscosity rubbers by means of a three roll device

IPC classification:
C08J 3/21, C08J 3/22, C08K 3/04, C08K 7/24
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP11180557

New compounds for producing poured polyamides

IPC classification:
C08G 69/14, C08G 69/18, C08G 69/20, C08K 5/00, C08L 77/02
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
GRANT OF PATENT INTENDED
EP11794789

MIXTURES ON THE BASIS OF SULFUR-CROSSLINKED TRIGLYCERIDE, A METHOD FOR THE PRODUCTION THEREOF, AND THE USE THEREOF AS FERTILIZER

IPC classification:
C05G 3/00
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12166641

New compositions containing carbodiimide, method for their production and use

IPC classification:
C08G 18/02, C08G 18/10, C08G 18/42, C08G 18/66, C08G 18/76, C08G 18/79, C08K 5/29, C08L 67/02
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP12718215

NOVEL DURABLE, HYDROLYSIS-STABLE BIO-BASED PLASTICS BASED ON POLYHYDROXYALKANOATE (PHA), METHOD FOR PRODUCING SAME, AND USE THEREOF

IPC classification:
C08K 5/29, C08L 67/04
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12717296

CARBODIIMIDES FROM TRISUBSTITUTED AROMATIC ISOCYANATES, A METHOD FOR PRODUCING SAME, AND THE USE OF SAME

IPC classification:
C07C 267/00, C08G 18/02, C08K 5/29
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
GRANT OF PATENT INTENDED
EP12740175

METHOD FOR DETERMINING THE QUALITY OF NON-CROSSLINKED RUBBER MIXTURES, AND CORRESPONDING DEVICE

IPC classification:
B29C 47/92, G01N 29/07, G01N 29/11, G01N 33/44
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
PATENT GRANTED
EP12748484

NOVEL FILM FOR SOLAR CELLS

IPC classification:
C08J 5/18, C08L 67/00, C08L 79/00, H01L 31/00, H01L 31/04, H01L 31/048
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12191102

Method for drying of plastics on the basis of polyester resins

IPC classification:
C08G 63/90, C08K 5/29, C08L 67/00
Applicant:
Rhein Chemie Rheinau GmbH
Applicant:
IfBB - Institut für Biokunststoffe und Bioverbundwerkstoffe, Hochschule Hannover
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP12168904

Cast polyamides, method for their manufacture and application thereof

IPC classification:
C08G 69/18
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
EXAMINATION IN PROGRESS
EP12751547

NOVEL COMPOSITIONS FOR PRODUCING CAST POLYAMIDES

IPC classification:
C08G 69/14, C08G 69/18, C08G 69/20, C08K 5/00, C08L 77/02
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
GRANT OF PATENT INTENDED
EP12195843

Method for manufacturing CNT master batches in liquid rubber by means of a three roller assembly

IPC classification:
C08J 3/21, C08J 3/22, C08J 5/00, C08K 3/04
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13165029

New compounds containing sulfide bridges, method for their manufacture and use thereof

IPC classification:
C07C 323/52, C10M 135/06
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12166635

New compounds containing carbodiimide, method for their production and use

IPC classification:
C08G 18/02, C08G 18/10, C08G 18/28, C08G 18/42, C08G 18/66, C08G 18/75, C08G 18/76, C08G 18/79, C08K 5/29, C08L 67/02
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP14167193

Compositions containing N-acetylcaprolactam, their preparation and their use for producing cast polyamides

IPC classification:
C08G 69/16, C08G 69/18, C08G 69/20
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP13166722

Compositions, their preparation and their use for producing cast polyamides

IPC classification:
C08G 69/16, C08G 69/18, C08G 69/20
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP13167511

Novel carbodiimides with urea and/or urethane terminal groups, process for their preparation and their use

IPC classification:
C07C 271/28, C07C 275/40, C08G 18/02
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP13152982

New compositions, cross-linkable rubber mixtures containing these compositions, process for their production and their use

IPC classification:
C07D 307/89, C08K 5/1539, C08K 5/3412, C08K 5/3417, C08K 5/378
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP13714881

USE OF CARBODIIMIDE-CONTAINING COMPOSITIONS FOR CONTROLLING POT LIFE

IPC classification:
C08G 18/02, C08G 18/10, C08G 18/28, C08G 18/42, C08G 18/66, C08G 18/75, C08G 18/76, C08G 18/79, C08K 5/29, C08L 67/02
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
EXAMINATION IN PROGRESS
EP13715156

METHODS FOR IMPROVING THE RESISTANCE TO HYDROLYSIS IN POLYURETHANE (PU)-BASED SYSTEMS

IPC classification:
C08G 18/02, C08G 18/10, C08G 18/42, C08G 18/66, C08G 18/76, C08G 18/77, C08G 18/79, C08K 5/29, C08L 67/02
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13711438

METHODS FOR CONTROLLING (EXTENDING) THE POT LIFE IN CHAIN-EXTENDED POLYURETHANE (PU)-BASED SYSTEMS

IPC classification:
C08G 18/02, C08G 18/10, C08G 18/42, C08G 18/66, C08G 18/76, C08G 18/79, C08K 5/29, C08L 67/02
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
PATENT GRANTED
EP13185138

Vulcanizable rubber composition for low fogging articles

IPC classification:
C08K 3/16, C08K 3/22, C08L 21/00, C08L 23/16, C08L 61/04
Applicant:
LANXESS Deutschland GmbH
Agent:
Multiple attorneys, LANXESS Deutschland GmbH
Status:
PATENT GRANTED
EP13711436

MOLDING POLYAMIDES, METHODS FOR THE PRODUCTION THEREOF, AND USE THEREOF

IPC classification:
C08G 69/18
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
PATENT GRANTED
EP13711683

NOVEL CARBODIIMIDE-CONTAINING COMPOSITIONS AND METHOD FOR THE PRODUCTION AND USE THEREOF

IPC classification:
C08K 5/29
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP13727879

CATALYSTS FOR PRODUCING CAST POLYAMIDE, METHOD FOR THE PRODUCTION OF SAID CATALYSTS AND THE USE THEREOF

IPC classification:
C08G 69/20
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
EXAMINATION REQUESTED
EP13197746

A vulcanizable polymer composition

IPC classification:
C08K 3/34, C08K 5/14, C08L 23/16
Applicant:
LANXESS Deutschland GmbH
Agent:
Multiple attorneys, LANXESS Deutschland GmbH
Status:
GRANT OF PATENT INTENDED
EP14151687

Biodiesel stabilised against oxidation

IPC classification:
C10L 1/14
Applicant:
LANXESS Deutschland GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP14153991

Polymer composition

IPC classification:
C08K 3/22, C08L 21/00, C08L 23/00, C08L 23/16, C08L 23/22
Applicant:
LANXESS Deutschland GmbH
Agent:
Multiple attorneys, LANXESS Deutschland GmbH
Status:
The patent has been granted
EP14171202

Bis[3 isopropenyl-alpha, alpha-dimethylbenzyl] carbodiimide, method for its production, and its use

IPC classification:
C07C 267/00, C08G 18/02, C08G 18/81, C08K 5/29, C08L 75/06
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
PATENT GRANTED
EP14172361

Method for improving adhesion between bitumen and stone in asphalt

IPC classification:
C08K 5/372, C08L 95/00
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION WITHDRAWN
EP14176949

Method for the stabilisation of biobased plastic based on polyester resin

IPC classification:
C08G 18/42, C08G 18/79, C08K 5/00, C08K 5/29
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
PATENT GRANTED
EP14724675

METHODS FOR PRODUCING OIL FORMULATIONS BY MEANS OF CERTAIN CARBODIIMIDES

IPC classification:
C10M 133/22, C10M 177/00, C10N 30/00, C10N 40/12, C10N 40/14, C10N 40/16, C10N 40/20, C10N 40/25, C10N 50/10, C10N 70/00
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
GRANT OF PATENT INTENDED
EP14722684

NEW CARBODIIMIDES HAVING TERMINAL UREA AND/OR URETHANE GROUPS, METHODS FOR PRODUCING SAID CARBODIIMIDES, AND USE OF SAID CARBODIIMIDES

IPC classification:
C07C 271/28, C07C 275/40, C08G 18/02
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
The patent has been granted
EP12170771

Method for stabilising polymers containing ester groups

IPC classification:
C08K 5/29
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP11168080

New compounds for producing poured polyamides

IPC classification:
C07D 201/02, C08G 69/16
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP11194919

Method for manufacturing CNT master batches in liquid caoutchouc by means of a three roller device

IPC classification:
C08J 3/20, C08J 3/21, C08J 3/22, C08J 5/00, C08K 3/04, C08L 9/02, C08L 21/00
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12196017

Method for dust-free manufacture of CNT master batches containing nano-particles in high viscosity rubbers by means of a three roller assembly

IPC classification:
B82Y 30/00, C08J 3/20, C08J 3/205, C08J 5/00, C08K 3/04, C08L 9/02, C08L 21/00
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
PATENT GRANTED
EP15700342

OXIDATION-STABILIZED BIODIESEL

IPC classification:
C10L 1/14
Applicant:
LANXESS Deutschland GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
EXAMINATION REQUESTED
EP15181924

IMPROVED METHOD FOR RUBBER-MODIFIED BITUMEN MADE FROM VULCANIZED RUBBER

IPC classification:
C08K 5/372, C08L 19/00
Applicant:
LANXESS Deutschland GmbH
Applicant:
Rhein Chemie Rheinau GmbH
Agent:
Britta Siegers, LANXESS Deutschland GmbH
Status:
APPLICATION PUBLISHED

Please Sign in to use this feature