Urethane-modified rosin ester and process for preparing the same

Details Urethane-modified rosin ester and process for preparing the same Urethane-modified rosin ester and process for preparing the same

1981-11-30

1983-03-22

Cockeram, H. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260104, 524187, C08L 9300

Patent

active

043775101

ABSTRACT:
A urethane-modified ester of rosin and a primary polyhydric alcohol has negligible hydroxyl content and is particularly useful as a polar tackifier in an adhesive composition made with a polar elastomer. The modified ester is prepared by reacting a rosin ester, for example, a rosin-pentaerythritol ester which contains some residual hydroxyl groups with a suitable isocyanate or diisocyanate.

REFERENCES:
patent: 3692720 (1972-09-01), Sloan
patent: 3718712 (1973-02-01), Tushans
patent: 4172070 (1979-10-01), Schaner
Shimizu et al., Chem. Abs. 92, 112450c-Water-Based Printing Inks-Japan Kokai Tokkyo Koho 79,143,306-Nov. 8, 1979.
Shearing, Chem. Abs. 90,206039m-Coating Process, U.K. 1,537,039, Dec. 29, 1978.
Nogawa, Derwent 55817, Nov. 12, 1982, Abstract of Japan Patent 146348.

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