CA623508A - 2,2'-dihydroxy-4,4'-substituted benzophenones as ultra-violet absorbers - Google Patents

2,2'-dihydroxy-4,4'-substituted benzophenones as ultra-violet absorbers

Info

Publication number
CA623508A
CA623508A CA623508A CA623508DA CA623508A CA 623508 A CA623508 A CA 623508A CA 623508 A CA623508 A CA 623508A CA 623508D A CA623508D A CA 623508DA CA 623508 A CA623508 A CA 623508A
Authority
CA
Canada
Prior art keywords
dihydroxy
ultra
substituted benzophenones
violet absorbers
absorbers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA623508A
Inventor
W. Wynn Robert
E. Hoch Paul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GAF Chemicals Corp
Original Assignee
General Aniline and Film Corp
Publication date
Application granted granted Critical
Publication of CA623508A publication Critical patent/CA623508A/en
Expired legal-status Critical Current

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CA623508A 2,2'-dihydroxy-4,4'-substituted benzophenones as ultra-violet absorbers Expired CA623508A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA623508T

Publications (1)

Publication Number Publication Date
CA623508A true CA623508A (en) 1961-07-11

Family

ID=35878687

Family Applications (1)

Application Number Title Priority Date Filing Date
CA623508A Expired CA623508A (en) 2,2'-dihydroxy-4,4'-substituted benzophenones as ultra-violet absorbers

Country Status (1)

Country Link
CA (1) CA623508A (en)

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