Methyl methacrylate compositions

Details Methyl methacrylate compositions Methyl methacrylate compositions

1990-08-30

1991-10-29

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

526212, 526310, 526376, 5263184, 52631844, 524385, 524386, 524387, 524388, C08F 624, C08F 2010

Patent

active

050617478

ABSTRACT:
Aliphatic alcohol, and high boiling point hydroxy compound additives are added to poly methyl methacrylate to improve the ultraviolet radiation resistance of the polymer. The additives may be incorporated into the poly methyl methacrylate by including the additives with the monomers prior to polymerization. Alternatively, the additives may be incorporated into the poly methylmethacrylate by addition to polymerized methyl methacrylate.

REFERENCES:
patent: 3943190 (1976-03-01), Abe et al.
patent: 4056559 (1977-11-01), Lewis
A. S. Belichenkol et al., "On the Mechanism of Polymer Destruction Under UV & Gamma Irradiation: The Influence of Low Molecular Weight Additives Related to Vibrational Cross-Relaxation", Sixth Symposium on Radiation Chemistry, 1986, pp. 535-538.
Effect of Low-Molecular-Weight Additives on the Radiation Strength of Transparent Polymers, Sov. J. Opt. Technol. 53(6), Jun. 1986 (The Optical Society of America), pp. 361-362, E. Eremeeva, M. Votinov, A. Dokukina, V. Ovchinnikov and Z. Smirnova.

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