Novel polymer containing cyclopentanylvinylene units

Details Novel polymer containing cyclopentanylvinylene units Novel polymer containing cyclopentanylvinylene units

1975-07-01

1977-05-10

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

210 54, 526142, 526144, 260 296H, 526240, 260 302, 526281, 528481, 260 304R, 428337, 428461, 260 306R, 428507, 260 308R, 260 312R, 260 326R, 260 326N, 260 334R, 260 338UA, 260 4595R, 2603452, 2603466, 260874, 260881, 260885, 260886, 260887, 260897B, 260897C, 260898, 260899, 260901, 526 27, 526 30, 526 41, 526 42, 526 47, 526 49, 526 56, 526 13S, C08F 812, C08F 842, C08F 846, C08F 2204

Patent

active

040229548

ABSTRACT:
Processes for preparing novel polymers containing carboxyl or carboxylate groups which comprises hydrolyzing starting polymers containing acid anhydride groups in the presence of acids or alkalies, the starting polymers being prepared by ring-opening polymerization of acid anhydride-type norbornene derivatives, and the characteristics and utility of these novel polymers are disclosed.

REFERENCES:
patent: 3494897 (1970-02-01), Reding
patent: 3684776 (1972-08-01), Field et al.
patent: 3856758 (1974-12-01), Ueshima et al.
patent: 3859265 (1975-01-01), Hepworth

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