C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/04 (2006.01) B29C 44/02 (2006.01) B29C 44/12 (2006.01) B29C 47/06 (2006.01) B29C 67/20 (2006.01) C08J 9/00 (2006.01) C08J 9/10 (2006.01) C08L 23/02 (2006.01) C08L 23/06 (2006.01) C08L 23/10 (2006.01) C08L 23/12 (2006.01) C08L 23/16 (2006.01) C08L 23/26 (2006.01) C08L 25/04 (2006.01) C08L 25/06 (2006.01) C08L 31/04 (2006.01) C08L 51/06 (2006.01)
Patent
CA 2132598
150 ABSTRACT A plastic foam material composed of a blended resin composition which includes at least two thermoplastic resins and a silane-modified based resin. The blended resin composition consists essentially of 100 parts by weight of at least two thermoplastic resins, from about 1 to about 50 parts by weight of a silane-modified, cross-linked, thermoplastic resin; from about 0.001 to about 2.5 parts by weight of a cross-linking catalyst for use in a silane compound and from about 1 to about 20 parts by weight of a foaming agent. According to one embodiment of the present invention, the thermoplastic resins include at least two substantially incompatible and substantially uncross-linked thermoplastic resins, while in another embodiment the two thermoplastic resins need not be substantially incompatible. The blended resin composition may further include reinforcers such as glass fibers and filler. The thermodecomposition foaming agent decomposes at sufficiently high temperatures to yield a plastic foam material. The resultant plastic foam material, in turn, exhibits superior resilience, improved compression strength and superior heat- insulation properties. A method to produce the plastic foam material from foamable tubes and foamable pieces is also disclosed.
Kobayashi Tomoyuki
Miyazaki Kenji
Nakamura Masanori
Adams Patent & Trademark Agency
Sekisui Kagaku Kogyo Kabushiki Kaisha
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