Sealing material for preventing water-leakage and method of manufacturing same
US4007152A · kind A · utility
4Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1974 |
| Grant date | Feb 8, 1977 |
| Priority date | — |
| Expiry date | May 30, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A sealing material for the prevention of water-leakage used in, for example, waterproofed fabric and various building and construction materials is provided. The sealing material consists of (a) a water-insoluble partially saponified polyvinyl alcohol having a saponification degree of 35 to 65% by mole and a number average polymerization degree of 500 to 3,500, and (b) 5 to 100 parts by weight, based on 100 parts by weight of said partially saponified polyvinyl alcohol, of a mixture of glycerin and the glyceryl ester of a carboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.