The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2009
Filed:
Mar. 03, 2006
Bernd Goebelt, Wesel, DE;
Gerard Reestman, NZ Weert, NL;
Karlheinz Haubennestel, Wesel, DE;
Barbel Gertzen, Emmerich, DE;
Michael Sommer, Duisburg, DE;
Bernd Goebelt, Wesel, DE;
Gerard Reestman, NZ Weert, NL;
Karlheinz Haubennestel, Wesel, DE;
Barbel Gertzen, Emmerich, DE;
Michael Sommer, Duisburg, DE;
BYK-Chemi GmbH, , DE;
Abstract
The invention relates to an unsaturated polyester resin mixture which can be cured by applying external pressure and which encompasses at least the following components: a) an unsaturated polyester resin whose weight-average molar mass is from 500 to 5000 g/mol; b) an ethylenically unsaturated monomer; c) a shrinkage-reducing component; d) an inert filler; and e) a reinforcing fibre; and f) from 0.01 to 1% by weight of a block copolymer, based on the total weight of the unsaturated polyester resin mixture comprising reinforcing fibre, where the block copolymer encompasses at least one A block and encompasses at least one B block, where the A block contains at least one amine-containing, ethylenically unsaturated monomer; and the B block contains at least one alkyl- and/or phenyl-containing, ethylenically unsaturated monomer, and is free from amine-containing, ethylenically unsaturated monomers. The present invention further relates to a process for preparation of the polyester resin mixtures and to the use of the block copolymers f) in unsaturated polyester resin mixtures.