Press pad for forming press

Details Press pad for forming press Press pad for forming press

1982-11-16

1984-07-24

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

100295, 156323, 428230, 428246, 428284, 4283166, 4283191, 425394, B29D 1700, B29C 300, B32B 532

Patent

active

044618000

ABSTRACT:
A press pad comprising a laminated core, made by sandwiching a hard cushion layer formed either by impregnating a porous elastic sheet with a binder and subsequently setting it or by sandwiching one or more rigid sheets of a high thermal conductivity between a plurality of porous elastic sheets individually impregnated with said binder and subsequently treated for setting thereof between two rigid sheets of a high thermal conductivity and soft cushion layers of porous elastic sheet bonded to both surfaces of said laminated core to be united with the latter as a body; which is useful for the manufacture of printed circuit boards, laminated sheets and so forth and which shows improved durability or heat-up property.

REFERENCES:
patent: 2741045 (1956-04-01), Merkin
patent: 2999041 (1961-09-01), Lappala
patent: 3096545 (1963-07-01), Rowland
patent: 3323238 (1967-06-01), Cohen
patent: 3471955 (1969-10-01), Cohen
patent: 3535198 (1970-10-01), Bloom
patent: 3684613 (1972-08-01), Frohning
patent: 3847724 (1974-11-01), Powers et al.
patent: 4043062 (1977-08-01), Lehrman
patent: 4238179 (1980-12-01), Llabres et al.
patent: 4340439 (1982-07-01), Giesler
patent: 4360984 (1982-11-01), Ruthenberg

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