Composition of matter for raised characters and method for manuf

Details Composition of matter for raised characters and method for manuf Composition of matter for raised characters and method for manuf

1992-12-23

1996-04-02

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

156230, 264162, 264236, B44C 1165, B28B 1118, B29C 7100, C08L 8300

Patent

active

055041442

ABSTRACT:
The invention is a composition of matter used in the making of raised characters for use in signs, and a method of manufacturing raised characters made from the composition. The matter is a polymerizable composition comprising a silicone rubber compound, and about 10 to about 50 weight percent of a silica filler based on the weight of the polymerizable composition. Moreover, the composition of matter is a curable composition comprising a vinyl resin selected from a vinyl plastisol or vinyl organosol, and about 10 to about 50 weight percent of a silica filler based on the weight of curable composition. The composition of matter may be a silicone rubber compound. The invention also includes a method of manufacturing raised characters for use in signs comprising machining the characters from a partially cured polymerizable material. A further method is disclosed for manufacturing raised characters for use in signs, comprising partially curing a liquid polymerizable or curable composition in a form having a relatively uniform thickness, and, machining the characters from the partially cured composition. Finally, a method for making signs using the raised characters of the invention is disclosed.

REFERENCES:
patent: 2638845 (1953-03-01), Perkins
patent: 4079112 (1978-05-01), Stransky et al.
patent: 4588420 (1986-05-01), Charvat

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