Aqueous-based sealant compositions
US4806590A · kind A · utility
17Cited by
6References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1987 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | May 20, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0642
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Aqueous-based sealant composition comprising at least one vinylidene chloride copolymer which has modal molecular weight Mp of at least 200,000, wherein the composition has Tg below 0.degree. C. The vinylidene chloride copolymer preferably includes polymerized units of an internally plasticizing comonomer and an unsaturated carboxylic acid. The composition preferably includes an external plasticizer and a filler material (particularly untreated calcium carbonate).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.