Ultraviolet absorbing copolymers
Patent
·
OSTI ID:864103
- Pasadena, CA
- La Crescenta, CA
Photostable and weather stable absorping copolymers have been prepared from acrylic esters such as methyl methacrylate containing 0.1 to 5% of an 2-hydroxy-allyl benzophenone, preferably the 4,4' dimethoxy derivative thereof. The pendant benzophenone chromophores protect the acrylic backbone and when photoexcited do not degrade the ester side chain, nor abstract hydrogen from the backbone.
- Assignee:
- California Institute of Technology (Pasadena, CA)
- Patent Number(s):
- US 4310650
- OSTI ID:
- 864103
- Country of Publication:
- United States
- Language:
- English
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·
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Related Subjects
/526/428/525/
2-hydroxy-allyl
absorbing
absorping
acrylic
backbone
benzophenone
chain
chromophores
containing
copolymers
degrade
derivative
dimethoxy
ester
esters
hydrogen
methacrylate
methyl
methyl methacrylate
nor
pendant
photoexcited
photostable
preferably
prepared
protect
stable
ultraviolet
weather
2-hydroxy-allyl
absorbing
absorping
acrylic
backbone
benzophenone
chain
chromophores
containing
copolymers
degrade
derivative
dimethoxy
ester
esters
hydrogen
methacrylate
methyl
methyl methacrylate
nor
pendant
photoexcited
photostable
preferably
prepared
protect
stable
ultraviolet
weather