Unsaturated polyester resin compositions, molding materials, and molded products
US5412003A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jan 22, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Jan 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31616
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Resin compositions containing (a) unsaturated polyester, (b) polymerizable monomer, (c) thermoplastic resin, (d) a polymerization initiator, and (e) hollow glass microspheres with a true density of 0.5 to 1.3 g/cm.sup.3 and an elution alkalinity of 0.05 meq/g or less; molding materials obtained by impregnating glass fibers with such resin compositions; and molded products obtained by curing such molding materials. The molding materials have a superior workability and are useful for the production of parts to be coated, such as automotive external body panels. The molded products are light in weight and are highly resistant to water. Defective adhesion of coating or blisters does not occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.