Preparation of padded articles
US4278629A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 1979 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Jun 18, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31931
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of preparing a cushion or like padded article comprising a plasticized vinyl chloride polymer cover filled with foam in which the cover is shaped and the foam prepared in situ within the cover, wherein a superior bond between the cover and foam is achieved by coating the interior surface of the cover prior to foaming with a primer composition comprising: PA1 (A) a latex of butadiene-acrylonitrile copolymer containing a hydroxyl or carboxyl group; and PA1 (B) a latex chosen from the group consisting of natural rubber, styrene-butadiene latex and mixtures thereof in an amount sufficient to promote bonding and wherein the weight ratio of (A) and (B) is from 4:1 to 1:4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.