Block copolymers of monovinylaromatic and conjugated diene monom

Details Block copolymers of monovinylaromatic and conjugated diene monom Block copolymers of monovinylaromatic and conjugated diene monom

1994-03-23

1995-08-01

Seidleck, James J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525250, 525271, C08F29704

Patent

active

054381037

ABSTRACT:
A method for preparing block copolymers from which can be made transparent blue articles comprising sequentially charging under polymerization conditions at least one monovinylaromatic monomer and at least one conjugated diene monomer, wherein at least the first monomer charge is a monovinylaromatic monomer charge polymerized in the presence of an initiator; wherein at least one other charge polymerized in the presence of an initiator is a monomer selected from the group of conjugated diene monomers and mixtures of monovinylaromatic and conjugated diene monomers; wherein the final monomer charge is a conjugated diene charge; and thereafter charging the reaction mixture with at least one coupling agent. The invention copolymers are particularly useful for applications such as packaging, display devices, toys and decorative items in which transparent blue appearance is desired without significant compromise of other physical and mechanical properties.

REFERENCES:
patent: 3670054 (1972-06-01), De La Mare et al.
patent: 3725368 (1973-04-01), Morrison et al.
patent: 3937760 (1976-02-01), Cole et al.
patent: 4004070 (1977-01-01), Farrar
patent: 4133845 (1979-01-01), Beck et al.
patent: 4285751 (1981-08-01), Feinberg et al.
patent: 4297451 (1981-10-01), Uraneck et al.
patent: 4584346 (1986-04-01), Kitchen
patent: 4925899 (1990-05-01), Rendina
patent: 5130377 (1992-07-01), Trepka
patent: 5256736 (1993-10-01), Trepka et al.
patent: 5290875 (1994-03-01), Moezygemba
patent: 5319033 (1994-06-01), Trepka

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