Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1992-03-30
1995-01-17
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528272, 528302, 528308, 525437, 525444, 525448, 4272071, 1563082, C08G 6318, B32B 3120
Patent
active
053826523
ABSTRACT:
A polyester resin (A) having branched chain, a reduction viscosity (.eta. sp/c) of not less than 0.7, and a Z average molecular weight (Mz) relative to standard polystyrene of not less than 250.times.10.sup.3 and not more than 800.times.10.sup.3, a polyester resin composition comprised of resin (A) and a polyester resin (B) without branched chain and having a reduction viscosity (.eta. sp/c) of not less than 0.7., and a polyester resin composition comprised of resin (A) and a polyester resin (C) having branched chain and a melting point lower than that of the polyester resin (A). The sealant made from the polyester resin (A), or the resin compositions of the present invention is superior in heat-sealing properties, flavor retention, and film moldability (extrusion processing characteristics), and is suitable for a sealant for paper and plastic food containers.
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Emoto Katsuya
Fukuda Kouji
Kamoto Takeshi
Mori Keiji
Nishihara Seiki
Acquah Samuel A.
Toyo Boseki Kabushiki Kaisha
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