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Johannes Van De Braak
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Hennef, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Polyester polyols made of isophthalic acid and/or terephthalic acid...
Patent number
9,605,106
Issue date
Mar 28, 2017
Covestro Deutschland AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing a foam composite element
Patent number
9,382,371
Issue date
Jul 5, 2016
Covestro Deutschland AG
Johannes Van De Braak
B32 - LAYERED PRODUCTS
Information
Patent Grant
Method for producing polyester polyols having low amounts of dioxan...
Patent number
8,592,623
Issue date
Nov 26, 2013
Bayer MaterialScience AG
Rolf Roers
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of polyester polyols with low volumes of...
Patent number
8,481,606
Issue date
Jul 9, 2013
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Apparatus and process for the production of sandwich composite elem...
Patent number
7,540,932
Issue date
Jun 2, 2009
Bayer MaterialScience AG
Thomas Rüb
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING A FOAM COMPOSITE ELEMENT
Publication number
20120225278
Publication date
Sep 6, 2012
Bayer MaterialSceience AG
Johannes Van De Braak
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING POLYESTER POLYOLS WITH LOW QUANTITIES OF DIOX...
Publication number
20120129966
Publication date
May 24, 2012
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PREPARING A FOAM COMPOSITE ELEMENT
Publication number
20120121887
Publication date
May 17, 2012
Bayer MaterialScience AG
Johannes Van De Braak
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POLYESTER POLYOLS MADE OF ISOPHTHALIC ACID AND/OR TEREPHTHALIC ACID...
Publication number
20120123009
Publication date
May 17, 2012
Bayer Material Science AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR THE PRODUCTION OF POLYESTER POLYOLS WITH LOW VOLUMES OF...
Publication number
20110237697
Publication date
Sep 29, 2011
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PRODUCING POLYESTER POLYOLS HAVING LOW AMOUNTS OF DIOXAN...
Publication number
20110236671
Publication date
Sep 29, 2011
Bayer Material Science AG
Rolf Roers
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Apparatus and process for the production of sandwich composite elem...
Publication number
20050257893
Publication date
Nov 24, 2005
Bayer MaterialScience AG
Thomas Rub
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL