Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1992-06-25
1994-04-19
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521142, C08F 3600
Patent
active
053045807
ABSTRACT:
The invention provides an expandable polyolefin resin composition comprising (a) 40 to 100 wt. % of a polypropylene resin having a melt index of 0.5 to 12, (b) 0 to 60 wt. % of a polyethylene resin having a melt index of 2 to 50 (c) 0.5 to 10 parts by weight of the di(meth)acrylate of an aliphatic dihydric alcohol having a methylene group with 2 to 18 carbon atoms between the (meth)acryloyloxy groups at both ends per 100 parts by weight of the combination of the resins (a) and (b), and (d) 1 to 50 parts by weight of a thermally decomposable blowing agent. Preferably the composition further comprises (e) 0.5 to 5 parts by weight of a monofunctional monomer. When uniformly crosslinked, the composition affords an expandable polyolefin resin composition suited to production of a crosslinked polyolefin resin foam excellent in heat resistance, toughness and moldability of formability and appearing homogeneous.
REFERENCES:
patent: 3852177 (1974-12-01), Atchison et al.
patent: 4525297 (1985-06-01), Yamane et al.
patent: 4766159 (1988-08-01), Kitagawa et al.
Derwent Publications, London, GB; AN 84-297694 & JP-A-59 184 629, (Sekisui) Oct. 20, 1984 (Abstract).
Derwent Publications, London, GB; AN 88-045862 & JP-A-63 003 038 (Mitsui) Jan. 8, 1988 (Abstract).
Arai Toshihiro
Ogasa Masao
Shibayama Koichi
Takahashi Eiichi
Kight III John
Mosely T.
Sekisui Chemical Co. Ltd.
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