Water-soluble male molded hook-and-loop fastener and method for producing same
US12144402B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 26, 2021 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Mar 25, 2041 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water-soluble male-type molded hook-and-loop fastener includes a substrate and a plurality of male-type engaging elements, arranged in rows, protruding from the substrate surface. The engaging elements have a shape rising from the substrate surface and curving mid-course in a row direction, or a shape rising from the substrate surface, branching forward and backward mid-course in the row direction and curving in the row direction, with tip portions oriented toward the substrate surface in either shape. The substrate and the engaging elements both contain a mixture of a polyvinyl alcohol, 5 to 30 parts by mass of a polyhydric alcohol- or ethylene oxide-based polymer, and 3 to 20 parts by mass of a layered inorganic particle, based on 100 parts by mass of the polyvinyl alcohol. The polyvinyl alcohol has a degree of polymerization of 300 to 700 and a degree of saponification of 60 to 80% by mole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.