Polyacylurethane and process for producing the same

Details Polyacylurethane and process for producing the same Polyacylurethane and process for producing the same

1995-05-02

1996-09-17

Krass, Frederick

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

Synthetic resins

From silicon reactant having at least one...

528 35, 528 38, 528369, C08G 1871

Patent

active

055569331

ABSTRACT:
The present invention provides a novel polyacylurethane, and a process for producing the same. More specifically, the polyacylurethane has a number average molecular weight of 500 to 100,000, and the main chain of said polyacylurethane comprises repeating units of the formula: ##STR1## where R.sub.1 represents an alkylene group or an alkenylene group having a molecular weight of 28 to 30,000, which may contain an alicylcic group, an aromatic group and/or an oxygen atom; and R.sub.2 represents an alkylene group, an arylene group or an alkenylene group having 1 to 8 carbon atoms.

REFERENCES:
patent: 3383400 (1968-05-01), Meisert et al.
Chemical Abstracts 122:134220, "Polyacylpolyurethanes and Their Manufacture".
Chemical Abstracts 121:58121, "Synthesis of Poly (N-acylurethanes, A New Class of Polyurethanes".
Chemical Abstracts 82:58490, "Poly(iminodicarboxylates".

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