Unsaturated polyester resin composition and laminates

Details Unsaturated polyester resin composition and laminates Unsaturated polyester resin composition and laminates

1992-08-10

1993-12-14

Short, Patricia A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

428481, 428480, 525 44, 525444, B32B 2704, B32B 2736

Patent

active

052701042

ABSTRACT:
An unsaturated polyester resin composition comprising:
(a) 30 to 99% by weight of an unsaturated polyester resin comprising a crosslinking monomer and an unsaturated alkyd obtained by reacting at least dicyclopentadiene (hereinafter abbreviated as "DCPD"), an unsaturated polycarboxylic acid and a polyhydric alcohol, and
(b) 1 to 70% by weight of a hardness adjusting unsaturated polyester resin.
Sheets of base material can be impregnated with the resin composition effectively to give a laminate which is satisfactorily punchable at low temperatures and yet has high resistance to thermal softening and outstanding electrical characteristics.

REFERENCES:
patent: 3733370 (1973-05-01), Thompson
patent: 3804920 (1974-04-01), Cunningham
patent: 4148765 (1979-04-01), Nelson
patent: 4224430 (1980-09-01), Maekawa et al.
patent: 4233432 (1980-11-01), Curtis, Jr.
patent: 4253665 (1981-03-01), Miller et al.
patent: 4274994 (1981-06-01), Riew
patent: 4287313 (1981-09-01), Uber
patent: 4309519 (1982-01-01), Obara et al.
patent: 4363907 (1982-12-01), Hefner et al.
Lubin, G. Handbook of Composites, p. 18, Van Nostrand Reinhold Co. 1982.
Nelson, Considerations: Dicyclopentadiene in Polyester Resins, 36th Annual Conference, Reinforced Plastics/Composites Institute, The Society of Plastic Industry, Inc. Feb. 16-20, 1981 (preprint).
Vrany, Chemical Abstracts, vol. 48, Item 9421h (1964).
Vrany, "Cyklopentadienove suorviny pro nenasycene polyesterove pryskyrice" (title of book unknown), pp. 78-79.
Japanese Published Examined Patent Appln. No. 10825/1970 of Hitachi Kasei Kogyo Co., Ltd., and English translation thereof.
The Merck Index, "Maleic Anhydride", p. 631 (1960).
Nelson, Preprint, 36th Annual Conference, Reinforced Plastics/Composites Institute, The Society of the Plastics Industry, Feb. 16-20, 1981.

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