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
1993-06-30
1995-12-19
Michl, Paul R.
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...
524265, 524436, 524437, C08J 328, C08K 524
Patent
active
RE0351270
ABSTRACT:
The invention features in synergistic combination a new chemistry for fabricating wire and cable insulation and heat-shrinkable tubing and an irradiation process for providing the insulation with both increased tensile strength and increased elongation.
The chemistry utilizes a polycondensation-type process wherein a hydrophobic olefinic terpolymer base material having 3% or less carboxyl groups and a hydrophilic flame retardant filler material containing hydroxyl groups is linked to a silicone material containing silanol groups.
The insulation is further characterized by an oxygen index in excess of 50.0, resulting from high loadings of the fire retardant filler material, generally in excess of 200 parts by weight of the total material weight.
REFERENCES:
patent: 3827933 (1974-08-01), Duggins
patent: 4373039 (1983-02-01), Mueller
patent: 4387176 (1983-06-01), Frye
patent: 4430470 (1984-02-01), Taniguchi et al.
patent: 4732939 (1988-03-01), Hoshi et al.
patent: 4885328 (1989-12-01), Danforth
patent: 5059651 (1991-10-01), Ueno
patent: 5104920 (1992-04-01), Keogh
Champlain Cable Corporation
Michl Paul R.
Rajguru U. K.
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