Patent · US Expired

Dendritic macromolecule and process for preparation thereof

US5418301A · kind A · utility

140Cited by

2References

25Claims

0Family size

Assignee

PERSTORP AB · SE

Inventors

Anders Hult · Täby, SE
Eva Malmstrom · Sollentuna, SE
Mats Johansson · Göteborg, SE
Kent Sorensen · Perstorp, SE

Key dates

Filing date	Jul 13, 1994
Grant date	May 23, 1995
Priority date	—
Expiry date	Jul 13, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S977/754
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a dendritic macromolecule of the polyester type comprising a central initiator molecule or initiator polymer having one or more reactive hydroxyl groups (A). The groups (A) are under formation of an initial tree structure bonded to reactive carboxyl groups (B) of a monomeric chain extender having the two reactive groups (A) and (B). The tree structure is optionally extended and further branched from the initiator molecule or initiator polymer by addition of further molecules of a monomeric chain extender by means of bonding between the reactive groups (A) and (B) thereof and is thereafter optionally further extended by reaction with a chain stopper. The invention also comprises a process for preparation of the dendritic macromolecule.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.