Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Patent
1987-03-19
1988-12-20
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
528312, B01J 3102
Patent
active
047925400
ABSTRACT:
Catalyst composition solid at room temperature, based on alkali metal lactamate, characterized in that the content of methanol, ethanol and n-propanol is lower than 0,2 wt. % and that 0.1-5 wt. % of another alcohol is present, chosen from isopropanol or a branched or unbranched aliphatic or aromatic alcohol with 4-18 carbon atoms, which alcohol has a boiling point of 80.degree. C. to 250.degree. C.
This catalyst composition is suitable for lactam polymerization, especially in RIM techniques. Nylon block copolymer prepared with said catalyst composition and articles made frrom this nylon block copolymer.
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patent: 3772253 (1973-11-01), Brassat
patent: 3775362 (1973-11-01), Brassat
patent: 4075182 (1978-02-01), Bacskai
patent: 4349460 (1982-09-01), Hartmann
patent: 4595746 (1986-06-01), Gabbert et al.
Bongers Jozef J. M.
Van Geenen Albert A.
Garvin Patrick P.
Stamicarbon B.V.
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