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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.:

US 11667824 B1

PDFFull Text
Date of Patent:
Jun. 06, 2023

Filed:

Jun. 17, 2020

Adhesive and its preparation and application

Applicant:

Covestro Intellectual Property Gmbh & Co. KG, Leverkusen, DE;

Inventor:

Chenxi Zhang, Shanghai, CN;

Assignee:

Covestro Intellectual Property GmbH & Co. KG, Leverkusen, DE;

Attorney:

The Webb Law Firm

Primary Examiner:

Patrick D Niland

Int. Cl.
CPC ...
C09J 175/08 (2006.01); C09J 7/35 (2018.01); B32B 7/12 (2006.01); B32B 17/04 (2006.01); C08G 18/12 (2006.01); C08G 18/16 (2006.01); C08G 18/32 (2006.01); C08G 18/34 (2006.01); C08G 18/48 (2006.01); C08G 18/62 (2006.01); C08G 18/76 (2006.01); C08K 5/14 (2006.01); C08K 5/5425 (2006.01); C08K 7/14 (2006.01); B29C 65/48 (2006.01); B29C 65/00 (2006.01); C08F 283/00 (2006.01); C08G 18/67 (2006.01); C08J 5/04 (2006.01); C09J 175/16 (2006.01); C09J 175/14 (2006.01); C09J 11/06 (2006.01); B29L 31/08 (2006.01);
U.S. Cl.
CPC ...
C09J 175/08 (2013.01); B29C 65/485 (2013.01); B29C 66/7212 (2013.01); B32B 7/12 (2013.01); B32B 17/04 (2013.01); C08F 283/006 (2013.01); C08G 18/12 (2013.01); C08G 18/166 (2013.01); C08G 18/3215 (2013.01); C08G 18/348 (2013.01); C08G 18/48 (2013.01); C08G 18/4829 (2013.01); C08G 18/4883 (2013.01); C08G 18/6229 (2013.01); C08G 18/672 (2013.01); C08G 18/7657 (2013.01); C08G 18/7664 (2013.01); C08J 5/043 (2013.01); C08K 5/14 (2013.01); C08K 5/5425 (2013.01); C08K 7/14 (2013.01); C09J 7/35 (2018.01); C09J 11/06 (2013.01); C09J 175/14 (2013.01); C09J 175/16 (2013.01); B29L 2031/082 (2013.01); C08G 2190/00 (2013.01); C09J 2475/00 (2013.01);
Abstract

The present invention relates to an adhesive, a preparation method and application thereof, particularly the application for bonding glass fiber composites, and a bonded article obtained by using the adhesive. The adhesive comprises: a polyisocyanate having an isocyanate functionality of not less than 2; an epoxy-modified polyether polyol; a hydroxyl-containing acrylate; a redox catalyst; a silane coupling agent; optionally a polyol containing bisphenol A structure; and optionally a polymer polyol different from the epoxy-modified polyether polyol. The adhesive according to the present invention has the advantages of being insensitive to moisture, good bonding properties and a long pot life.

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