Sheet-like articles from orientable polymers and polymer microbeads
US5298581A · kind A · utility
1Cited by
5References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 5, 1992 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Aug 5, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A sheet-like article comprising a continuous oriented polymer phase having dispersed therein from about 5-50% by weight of cross-linked polymeric microparticles based on the weight of the oriented polymer, the microparticles being partially bordered by void space, the void space occupying about 2 to 60% by volume of the sheet-like article, the cross-linked polymeric microparticles having been prepared by the free radical polymerization of an ethylenically mono-unsaturated monomer and an ethylenically poly-unsaturated monomer in the presence of an effective amount of diacyl peroxide to catalyze the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.