Thermally stable phenolic resin compositions with ortho, ortho m

Details Thermally stable phenolic resin compositions with ortho, ortho m Thermally stable phenolic resin compositions with ortho, ortho m

1989-03-20

1990-11-13

Bowers, Jr., Charles L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528214, 528219, 430192, C08G 6538

Patent

active

049702874

ABSTRACT:
A phenolic resin composition comprising units of formula (I): ##STR1## wherein R.sub.1 is a halogen and R.sub.2 is a lower alkyl group having 1 to 4 carbon atoms, and said units of formula (I) are made by condensing the corresponding halogen-substituted resorcinol of formula (A): ##STR2## wherein R.sub.1 is defined above, with the corresponding para-lower alkyl-substituted 2,6-bis(hydroxymethyl)-phenol of formula (B): ##STR3## wherein R.sub.2 is defined above, and wherein the mole ratio of A:B is from about 0.5:1 to 1.7:1. This phenolic resin may be mixed with photoactive compounds (e.g. 1,2-naphthoquinone diazide sensitizers) to prepare a light-sensitive composition useful as a positive-working photoresist.

REFERENCES:
patent: 3023251 (1962-02-01), Meyers
patent: 3038882 (1962-06-01), Gavlin et al.
patent: 3046110 (1962-07-01), Schmidt
patent: 3046111 (1962-07-01), Schmidt
patent: 3046112 (1962-07-01), Schmidt et al.
patent: 3046114 (1962-07-01), Sus
patent: 3046115 (1962-07-01), Schmidt et al.
patent: 3046116 (1962-07-01), Schmidt
patent: 3046118 (1962-07-01), Schmidt
patent: 3046121 (1962-07-01), Schmidt
patent: 3046122 (1962-07-01), Sus
patent: 3046123 (1962-07-01), Sus et al.
patent: 3384618 (1968-05-01), Imoto
patent: 3635709 (1972-01-01), Kobayashi
patent: 4009033 (1977-02-01), Bakos et al.
patent: 4013605 (1977-03-01), Hultzsch
patent: 4061620 (1977-12-01), Gillern
patent: 4076873 (1978-02-01), Shea
patent: 4211834 (1980-07-01), Lapadula et al.
patent: 4259430 (1981-03-01), Kaplan et al.
patent: 4306010 (1981-12-01), Uehara et al.
patent: 4368299 (1983-01-01), Watanabe et al.
patent: 4376854 (1983-03-01), Yamaguchi et al.
patent: 4377631 (1983-03-01), Toukhy et al.
patent: 4387152 (1983-06-01), Stahlhofen
patent: 4397937 (1983-08-01), Clecak et al.
patent: 4404272 (1983-09-01), Stahlhofen
patent: 4460674 (1984-07-01), Uehara et al.
patent: 4477553 (1984-10-01), Yamamoto et al.
patent: 4536464 (1985-08-01), Nagashima et al.
patent: 4548688 (1985-10-01), Matthews
patent: 4551407 (1985-11-01), Sanders et al.
patent: 4614826 (1986-09-01), Katayama et al.
patent: 4642282 (1987-02-01), Stahlhofen
Organic Chemistry by Robert T. Morrison and Robert N. Boyd, pp. 337-334.
Noller, C. R., Textbook of Organic Chemistry, 2nd Ed., W. B. Saunders Co., 1958, p. 390-391.
Chemical Abstracts, #93:27245r.
Chemical Abstract, #79:67646q.
Chemical Abstracts, #82:163047c.
Chemical Abstracts, #101:161293s.
Chemical Abstracts, #101:120523y.
Chemical Abstracts, #101:120524z.
Chemical Abstracts, #104:99528d.

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