Main > POLYMERS > Oligomer > Olefin Oligomer > Catalyst > Molecular Sieve. Zeolite. > Patent > Claims > Claim 1: Core. Surface Layer (SL). > Core is Zeolite Contg Si & Ga & SL > is Zeolite Contg Si & Al. > Same Crystalline Structure. > (Si:Al)SL>(Si:Ga)Core. Claim 2: > (Si:Ga)Core>120:1. Claim 3: (Si:Al > )SL>150:1. Claim 4: Molecular Siev > e CI.degree>2. Claim 5: Zeolite SL > Select: ZSM-5 Etc. Claim 9: Olefin > Oligomerization Catalyst:

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Oligomerization Catalyst:'s subsections
Molecular Sieve (Cl. 1). Claim 10:

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