Hot-melt polyester

Details Hot-melt polyester Hot-melt polyester

1981-03-10

1982-12-14

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of polyester

428349, 428355, 428411, 428430, 428458, 428540, 528302, 528309, B32B 2736, C08G 6316

Patent

active

043638538

ABSTRACT:
A polyester comprising acid monomer units of terephthalic acid, succinic acid, glutaric acid and isophthalic acid and/or an aliphatic dicarboxylic acid having 6 to 20 carbon atoms and glycol monomer units of a C.sub.2-10 alkylene glycol in specific proportions has been found to be extremely useful as hot-melt materials such as a hot-melt adhesive, a hot-melt coating material, a hot-melt sealing material and a hot-melt filling material. The present hot-melt polyester has excellent melting characteristics, that is, it can be rapidly molten from a solid state with a high sensitivity to heating to give a molten polyester having a stably low viscosity that does not almost undergo change according to variation of temperature and having an excellent fluidity. Further, the present hot-melt polyester has a good affinity for objects (e.g. adherend) to which the polyester is applied and exhibits excellent bonding or adhesive performance. Moreover, the present hot-melt polyester has improved suppleness and flexibility. The mechanical strength, stretchability and flexibility of the hot-melt adhesive can be much improved while maintaining the melt viscosity thereof at a low level. Thus, there is provided a hot-melt polyester having a well-balanced combination of physical properties that is very important to hot-melt materials.

REFERENCES:
patent: T925005 (1974-08-01), Chen
patent: 2863854 (1958-12-01), Wilson
patent: 2870124 (1959-01-01), Ham
patent: 2892747 (1959-06-01), Dye
patent: 3091600 (1963-05-01), Caldwell
patent: 3212920 (1965-10-01), Chapman
patent: 3959062 (1976-05-01), Hoh
patent: 4059715 (1977-11-01), Pletcher
patent: 4062907 (1977-12-01), Sublett
patent: 4124571 (1978-11-01), Georgoudis
patent: 4166895 (1979-09-01), Buxbaum
patent: 4201859 (1980-05-01), Agarwal
patent: 4204014 (1980-05-01), Dorffel

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