Hyperbranched macromolecule from epoxide nucleus and hydroxy-fun

Details Hyperbranched macromolecule from epoxide nucleus and hydroxy-fun Hyperbranched macromolecule from epoxide nucleus and hydroxy-fun

1995-10-24

1997-09-02

Sellers, Robert E.

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

Synthetic resins

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

525403, 525404, 525408, 525409, 525502, 525504, 525507, 525508, 525528, 525529, 525530, 525531, 525532, 424DIG16, C08G 5914, C08G 5916, C08G 6366

Patent

active

056632479

ABSTRACT:
A hyperbranched macromolecule of polyester type comprising a central monomeric or polymeric nucleus and at least one generation of a branching chain extender having at least three reactive sites of which at least one is a hydroxyl or hydroxyalkyl substituted hydroxyl group and at least one is a carboxyl or terminal epoxide group. The nucleus is an epoxide compound having at least one reactive epoxide group. Optionally, the macromolecule comprises at least one generation consisting of at least one spacing chain extender having two reactive sites of which one is a hydroxyl or hydroxyalkyl substituted hydroxyl group and one is a carboxyl or terminal epoxide group. The macromolecule may be terminated by means of at least one chain stopper.

REFERENCES:
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patent: 5418301 (1995-05-01), Hult et al.
patent: 5527524 (1996-06-01), Tomalia et al.
WPAT accession No. 96-067603/07 for Swedish Patent No. 502634, Perstorp AB. Nov. 1995.
Tomalia, et al. Agnew. Chem Int. Ed., 138-175 (1990).

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