Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1989-04-12
1990-12-04
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
530214, 5262196, 5262321, 526232, C04F 3200
Patent
active
049755048
ABSTRACT:
Copolymerization of isoterpinolene with maleic anhydride, preferably in the presence of a free radical initiator such as AIBN, to form high molecular weight (weight average molecular weight over 1000) polymers is disclosed. The polymerization may be conducted at a temperature up to about 190.degree. C., preferably in the range of about 40.degree. to 130.degree. C., preferably in the presence of a polar solvent.
REFERENCES:
patent: 1978598 (1934-10-01), Peterson
patent: 1993026 (1935-03-01), Littmann
patent: 1993036 (1935-03-01), Humphrey
patent: 2067859 (1937-01-01), Peterson
patent: 2080436 (1937-05-01), Peterson
patent: 2118925 (1938-05-01), Humphrey
patent: 2126944 (1938-08-01), Billing
patent: 2241341 (1941-05-01), Ender
patent: 2353927 (1944-07-01), Pickett
patent: 2354776 (1944-01-01), Rummelsburg
Daley Dennis R.
Kight III John
Sites Edward J.
Union Camp Corporation
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