Putty or mastic

Details Putty or mastic Putty or mastic

1983-10-06

1987-02-24

Ivy, C. Warren

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524195, 524503, C09K 2114, C09D 534

Patent

active

046457828

ABSTRACT:
An intumescent putty or mastic is produced by admixing fine particles of solid intumescent material, polyvinyl butyral and a volatile solvent. The intumescent material can optionally be ground scrap intumescent door seals.

REFERENCES:
patent: 3090764 (1963-05-01), Ellis
patent: 4210725 (1980-07-01), Redfarn
patent: 4269944 (1981-05-01), Redfarn

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