Waterproof sheet
US8314166B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Feb 12, 2008 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Jul 23, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L63/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A waterproof sheet comprising a vinyl chloride-based resin composition which comprises 100 parts by weight of a vinyl chloride-based resin (A), 5 to 100 parts by weight of a plasticizer (B), 0.05 to 5 parts by weight of a hindered amine compound (C) represented by the following general formula (I), and 0.05 to 5 parts by weight of a benzotriazole-based ultraviolet light absorber (D) represented by the general formula (II):wherein R1 and R2 represent each independently an alkyl group having 4 to 20 carbon atoms or a cycloalkyl group having 5 to 6 carbon atoms;wherein R3 represents an alkyl group having 1 to 12 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.