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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 12692420 B1

PDFFull Text
Date of Patent:
Jul. 28, 2026

Filed:

Mar. 28, 2022

One-component aqueous spray adhesive

Applicant:

Covestro Deutschland Ag, Leverkusen, DE;

Inventors:

Chenxi Zhang, Shanghai, CN;

Feng Zhu, Shanghai, CN;

Ling Qiu, Shanghai, CN;

Assignee:

Covestro Deutschland AG, Leverkusen, DE;

Attorney:

Donald R. Palladino

Primary Examiner:

Kelechi C Egwim

Int. Cl.
CPC ...
C09J 5/00 (2006.01); C08K 3/22 (2006.01); C08K 5/103 (2006.01); C08K 5/17 (2006.01); C09J 11/04 (2006.01); C09J 111/02 (2006.01);
U.S. Cl.
CPC ...
C09J 111/02 (2013.01); C08K 3/22 (2013.01); C08K 5/103 (2013.01); C08K 5/175 (2013.01); C09J 5/00 (2013.01); C09J 11/04 (2013.01); C08K 2003/222 (2013.01); C08K 2003/2296 (2013.01); C08K 2201/011 (2013.01); C09J 2411/00 (2013.01);
Abstract

Provided is a one-component aqueous spray adhesive. The spray adhesive includes an aqueous chloroprene dispersion, where the increase of the Shore A hardness of the formed adhesive film in 0 to 10 hours accounts for equal to or more than 90% of the increase of the Shore A hardness of the formed adhesive film in 0 to 1000 hours; a styrene-acrylate copolymer dispersion having a solid content of 15% by weight to 25% by weight, relative to the total weight of solids of the aqueous chloroprene dispersion; a polyol ester without hydroxyl groups in an amount of 0.9% by weight to 3.8% by weight, relative to the total weight of the aqueous spray adhesive; and an amino acid in an amount of 4% by weight to 15% by weight, relative to the total weight of the aqueous chloroprene dispersion.

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Zhang, Chenxi. (2026). One-component aqueous spray adhesive (U.S. Patent No. 12692420). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12692420

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