High-speed processable cellular insulation material with enhanced foamability

US6455602B1 · kind B1 · utility

Assignee

• Union Carbide Chemicals & Plastics Technology LLC · US

Inventors

• Sandra Maki · Beaconsfield, CA
• Geoffrey D. Brown · Bound Brook, US
• Scott H. Wasserman · Bound Brook, US
• David Frankowski · Woodhaven, US
• Vicky He · Brooklyn, US

Key dates

• Filing date: Oct 24, 2000
• Grant date: Sep 24, 2002
• Expiry date: Oct 24, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2314/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An expandable composition comprising:(A) about 60 to about 98 percent by weight of a polyolefin or mixture of polyolefins wherein the polyolefin or mixture has an &eegr;0 of less than about 9.0 kilopascal.seconds (kPa.s), a Jr greater than about 50×10−5/pascals (Pa), and an Ea greater than about 6.7 kilocalories per mole (kcal/mol); and(B) about 2 to about 40 percent by weight of a polyolefin or mixture of polyolefins having an nRSI greater than about 4.5, and no greater than about 19; or(C) a polyolefin or mixture of polyolefins wherein the polymer or mixture has an &eegr;0 of less than about 9.0 kilopascal.seconds, a Jr greater than about 50×10−5/pascals, an Ea greater than about 6.7 kilocalories/mole, and an nRSI greater than about 9.