摘要:
Yield and selectivity of olefin acetoxylation are improved through the use of successive catalyst zones of different reactivities, the successive zones contained in one or more reaction tubes arranged is parallel.
摘要:
The invention provides alkoxy-crosslinking rubber mixtures (M) which comprise a compound of the general formula (1) M(OR1)n(OSiR23)5-n (1) and polymers with end groups of the general formula (2) —SiR3a(OR4)3-a (2), where M is defined as Nb or Ta, R1, R2; R3 and R4 are each hydrocarbon radicals having 1 to 10 carbon atoms, n is 1, 2, 3 or 4, and a is 0 or 1.
摘要:
The invention provides alkoxy-crosslinking rubber mixtures (M) which comprise a compound of the general formula (1) M(OR1)n(OSiR23)5-n (1) and polymers with end groups of the general formula (2) —SiR3a(OR4)3-a (2), where M is defined as Nb or Ta, R1, R2; R3 and R4 are each hydrocarbon radicals having 1 to 10 carbon atoms, n is 1, 2, 3 or 4, and a is 0 or 1.
摘要:
Yield and selectivity of olefin acetoxylation are improved through the use of successive catalyst zones of different reactivities, the successive zones contained in one or more reaction tubes arranged is parallel.