CSPE/CPE blend membrane

Details CSPE/CPE blend membrane CSPE/CPE blend membrane

1991-10-23

1996-06-04

Michl, Paul R.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

428490, 428523, C08L 2334

Patent

active

055233570

ABSTRACT:
A blend of chlorosulfonated polyethylene (CSPE) and amorphous chlorinated polyethylene (CPE) together with an additive of crystalline thermoplastic polyolefin (e.g., ultralow density polyethlene) is presented. This material is easily processed on the rolls of a rubbermill (i.e., calender) to form continuous sheets of membrane suitable for use in single ply roofing and other similar applications. In a preferred embodiment, a membrane formed from the composition of this invention is used as the upper layer of a multilayer single ply roof.

REFERENCES:
patent: 2711986 (1955-06-01), Strain et al.
patent: 3125548 (1964-03-01), Anderson
patent: 3351677 (1967-11-01), Barton et al.
patent: 3558762 (1971-01-01), Kohnlein et al.
patent: 3575779 (1971-04-01), Chapman et al.

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