Claims
- 1. An expandable ethylene or styrene polymer composition comprising an ethylene or styrene polymer, a blowing agent, a crosslinking agent is selected from the group consisting of silane, azido silane, titanate and amino compounds which upon reaction with said ethylene or styrene polymer reversibly releases alcohol, and a sufficient amount of alcohol to control the degree of crosslinking of said ethylene or styrene polymer prior to activation of said blowing agent and foaming of said ethylene or styrene polymer.
- 2. The composition of claim 1 wherein said crosslinking agent is selected from the group consisting of silane, azido silane, titanate and amino compounds.
- 3. The composition of claim 2 wherein said ethylene or styrene polymer material is selected from the group consisting of linear low density polyethylene, high density polyethylene, polypropylene polystyrene, styrene/acrylic acid copolymers, ethylene/acrylic acid copolymers, styrene/acrylonitrile/hydroxy ethylacrylate terpolymers, and mixtures thereof.
- 4. The composition of claim 3 wherein said alcohol is an aliphatic alcohol selected from the group consisting of methanol, ethanol, n-propanol, i-propanol, and butanol.
- 5. The composition of claim 4 wherein said blowing agent is selected from the group consisting of dichlorodifluoromethane, trichloromonofluoromethane, dichlorotetrafluoroethane and mixtures thereof.
CROSS-REFERENCE TO RELATED APPLICATION
This is a divisional of application Ser. No. 672,010, filed Nov. 16, 1984, U.S. Pat. No. 4,694,025, issued 9-15-87.
US Referenced Citations (11)
Divisions (1)
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Number |
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672010 |
Nov 1984 |
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