Main > POLYMERS > Oligomer > Olefin Oligomer > Catalyst > Molecular Sieve. Zeolite. > Patent > Claims > Claim 1: Core. Surface Layer (SL). > Core & SL: Zeolite Contg Si & Al. > Same Crystalline Structure. > (Si: Al)SL>(Si:Al)Core. Claim 2: > (Si: Al)SL=300-1500:1. Claim 3: > Molecular Sieve CI.degree>10. > Claim 4: Olefin Oligomerization > Catalyst: Molecular Sieve (Cl. 1). > Claims 5,6: (Si:Al)Core>120:1 & > =60-100:1 resp. Claims 7,8(Si:Al)SL > >150:1& =300-1500:1 resp. Claim 11:
>150:1& =300-1500:1 resp. Claim 11:'s subsections
Molecular Sieve: ZSM-22. Claims
>150:1& =300-1500:1 resp. Claim 11:'s products
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