Colloid stabilized latex adhesives
US4721748A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1986 |
| Grant date | Jan 26, 1988 |
| Priority date | — |
| Expiry date | Nov 17, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J151/003
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Latex adhesives having a Tg of -60.degree. to 0.degree.C. characterized by superior rheological properties, are prepared without the use of additional thickeners from a colloid stabilized latex comprising: 65-90% by weight of the latex polymer solids of an acrylate or methacrylate ester monomer polymerized in 10-35% by weight of the latex solids of a polymeric colloid, the polymeric colloid having a Tg of -40.degree. to 0.degree.C., a number average molecular weight of 2,000 to 10,000 and comprising PA1 (a) 50 to 85% by weight of a monomer of the formula: ##STR1## where R' is hydrogen or methyl and R" is a C.sub.1 -C.sub.12 straight or branched chain alkyl group; PA1 (b) 10 to 50% by weight of an ethylenically unsaturated mono- or dicarboxylic acid; PA1 (c) 5 to 30% by weight of an acrylic or methacrylic ester of a polyalkylene oxide, and PA1 (d) 0 to 30% by weight of another ethylenically unsaturated copolymerizable monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.