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...
Patent
1980-03-28
1983-01-18
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...
524490, 524505, 525 95, C08K 501
Patent
active
043692842
ABSTRACT:
A novel gelatinous composition is disclosed which contains an intimate melt blend admixture of poly(styrene-ethylene-butylene-styrene) triblock copolymer having said styrene end block to ethylene and butylene center block ratio within the range of from between 31:69 to 40:60, and high levels of an plasticizing oil.
The gelatinous composition is transparent and have a novel combination of properties including unexpectedly high elongation and tensile strength and excellent shape retention after extreme deformation under high-velocity impact and stress conditions. The gelatinous products of this invention are soft, flexible, and have elastic memory, characterized by a gel rigidity of from about 20 gram to about 700 gram Bloom. These and other properties are particularly essential for the gelatinous composition to have utility as toys, therapeutic hand exercising grips, shock absorbers, acoustical isolators, and other uses.
REFERENCES:
patent: 3485787 (1969-12-01), Haefele
patent: 3676387 (1972-07-01), Lindlof
patent: 3827999 (1974-08-01), Crossland
patent: 4151057 (1979-04-01), St. Claire et al.
patent: 4176240 (1979-11-01), Sabia
Shell Tech. Bull. SC 65-75, "Kraton G Thermoplastic Rubber for Sealants", ADH. & Related Materials, 8/1975.
SC 198-77, (8-1977), "Kraton" Shell.
"Recent Advances in Polymer Blends Grafts and Blocks", Editor L. H. Sperling Plenum Press, Poly Sci. & Tech., vol. 4, 1974, pp. 269-279.
Phillips Pet Rep 820-P-TR, "Effect of Oils on Solprrene 406".
Craver et al., Editor, "Applied Polymer Science", Organic Coatings & Plastics Chem. ACS 1975, pp. 394-429.
Applied Elastomerics, Incorporated
Lilling Herbert J.
Marquis Melvyn I.
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