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:
Apr. 06, 2021
Filed:
Nov. 01, 2019
H.b. Fuller Company, St. Paul, MN (US);
Claudia Mosanu, Blaine, MN (US);
Marietta B. Helmeke, Little Canada, MN (US);
H.B. Fuller Company, St. Paul, MN (US);
Abstract
A moisture curable hot melt sealant composition that includes a silane-functional polyurethane that is free of isocyanate groups, a thermoplastic elastomer having a weight average molecular weight of at least 100,000 grams per mole and being derived from 0% by weight to no greater than 30% by weight styrene, based on the weight of the thermoplastic elastomer, the thermoplastic elastomer being selected from the group consisting of butyl rubber, ethylene-propylene rubber, ethylene-propylene diene rubber, thermoplastic polyolefin elastomer, styrene block copolymer, and combinations thereof, a first tackifying agent that includes from 0% by weight to less than 15% by weight aromaticity based on the weight of the tackifying agent, the first tackifying agent being selected from the group consisting of aliphatic tackifying agent, aromatic-modified aliphatic tackifying agent, cycloaliphatic tackifying agent, aromatic-modified cycloaliphatic tackifying agent, and combinations thereof, a liquid butene component selected from the group consisting of polyisobutylene, polyisobutene, polybutene, and combinations thereof, and optionally a second rosin-based tackifying agent.