Filler and floatability material manufacturing process and tubul

Details Filler and floatability material manufacturing process and tubul Filler and floatability material manufacturing process and tubul

1990-07-05

1993-06-08

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523218, C08J 932

Patent

active

052180166

ABSTRACT:
A filler and floatability material is an extruded admixture of a thermoplastic resin material and a mineral or organic load lightening material that resists against hydrostatic pressure. The admixture contains 50 to 80% by volume of a polyolefin or a polydiolefin homo- or copolymer as the thermoplastic resin material and 50 to 20% by volume of hollow microspheres as the load lightening material that resists against hydrostatic pressure. The filler and floatability material displays a density ranging from 0.65 to 0.85, elasticity which is greater than 10% distortion, uniaxial compression strength equal to at least 60 bar and water absorption under 50 bar pressure which is lower than 5% by weight.

REFERENCES:
patent: 4351913 (1982-09-01), Patel
patent: 4375489 (1983-03-01), Muszynski
patent: 4382821 (1983-05-01), Davis et al.
patent: 4556603 (1985-12-01), Thorsrud
patent: 4598106 (1986-07-01), Utsugi
patent: 4714722 (1987-12-01), Najvar et al.
patent: 4757100 (1988-07-01), Wichelhaus et al.

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