Adhesive composition
US12312505B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2019 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Jul 31, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J175/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An adhesive composition is provided. The adhesive composition for zipper bag application, comprising the following components: (a) a mixture of a polyurethane dispersion with acrylic emulsion, wherein the polyurethane dispersion comprises a reaction product of by dry weight based on total dry weight of the polyurethane dispersion, from 30% to 50% of a monomeric diisocyanate, from 45% to 69% of a polymeric polyol and from 1% to 15% of ionic surfactant, the polyurethane dispersion has a Tg of −15° C. to 15° C., and the acrylic emulsion has a Tg of −10° C. to 25° C., and wherein the ratio by weight of the polyurethane dispersion and the acrylic emulsion is from 15:85 to 85:15, (b) a polyisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.