Latex composition and one-pack type aqueous adhesive composed of said latex composition
US10844252B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2017 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Jul 26, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J133/064
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A latex composition shows storage stability and spray coating characteristics and gives a soft adhesive layer after drying and a one-pack type aqueous adhesive. The latex composition includes a chloroprene-based polymer latex (A) containing a chloroprene-based polymer in an amount of 50 to 85 mass % as solid matter and an acrylic polymer latex (B) having a glass transition temperature of −52 to −9° C. and containing an acrylic polymer containing a sodium alkylbenzenesulfonate having a structure represented by the Chemical Formula (1) or a sodium alkyl diphenyl ether disulfonate in an amount of 15 to 50 mass % as solid matter, in a total amount of 100 parts by mass, and additionally at least one pH regulator (C) selected from boric acid, ammonium sulfate, and amino acids having an isoelectric point of 5.5 to 6.5 in an amount of 3 to 13 parts by mass as solid matter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.