Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
Inventor
active
1-H-pyrido-[3,2-b][1,4]-thiazine
1H-pyrido-(2,3-b) (1,4)-thiazines
Age protection agents, the production thereof and the polymers w
Amino and ammonium isocyanates, a process for their preparation,
Antiagers and polymers containing them
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