Patent · US Expired

Photosensitive coating composition

US3945833A · kind A · utility

8Cited by

9References

7Claims

0Family size

Assignee

Toyo Ink Mfg. Co., Ltd. · JP

Inventors

Masujiro Sumita
Ryozo Konno
Toru Takeuchi

Key dates

Filing date	Sep 4, 1974
Grant date	Mar 23, 1976
Priority date	—
Expiry date	Sep 4, 1994

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/117
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A photosensitive coating composition comprising (1) a prepolymer containing radically cross-linkable ethylenically unsaturated double bonds and (2) a sensitizer which comprises predominantly a mixture of (a) benzophenone, halogenated benzophenone or a combination thereof and (b) 4,4'-bis(diethylamino)benzophenone in a weight ratio of about 1:2 to 10:1.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.