Solid polysulfide containing hot melt sealants, adhesives and th

Details Solid polysulfide containing hot melt sealants, adhesives and th Solid polysulfide containing hot melt sealants, adhesives and th

1975-10-29

1976-10-26

Jacos, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 28P, 260 306R, 260 312R, 260 318R, 260 336R, 260 338R, 260 37R, C08L 9300

Patent

active

039882764

ABSTRACT:
Solvent-free hot melt compositions for use as sealants, adhesives, caulking compounds or the like are produced by intimately blending elastomeric polymers with tackifying resins and plasticizers to obtain products having a hardness at room temperature of at least about 5 on the Shore A Durometer scale while being sufficiently soft at temperaures of about 150.degree.F or higher to permit them to be easily extruded or otherwise applied. Adhesion promoters, lubricants, fillers and the like are preferably added to the composition to improve the properties thereof. The products are characterized by their stability over a wide range of temperatures, their resistance to oxidation and weathering, and their low moisture vapor transmission properties.

REFERENCES:
patent: 3505258 (1970-04-01), Panek et al.
patent: 3882091 (1975-05-01), Villa

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