Recyclable cross-linked polymer, method for producing a molded a

Details Recyclable cross-linked polymer, method for producing a molded a Recyclable cross-linked polymer, method for producing a molded a

1996-03-01

1997-08-05

Zemel, Irina S.

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

Synthetic resins

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

525105, 525106, 525146, 525150, 525192, 525194, C08J 1110, C08G 7700, C08G 7500

Patent

active

056543689

ABSTRACT:
The invention is to provide elastomer-like or rubber-like, recyclable cross-linked polymers capable of being liquefied and re-molded repeatedly without detracting from the physical properties of the polymers. The polymer comprises meltable cross-linked oligomer units and linkage units via which the oligomer units are linked to construct the main chains of the polymer. Each linkage unit in the polymer comprises a chemical bond that can be cleaved and re-formed repeatedly by predetermined treatment by which the bond between monomers in the oligomer units are not cleaved. The method for producing the polymer comprises a step of forming oligomer units by polymerizing monomers, a step of forming linkage units by linking the oligomer units via linkage units and a step of forming cross-linked units between the oligomer units.

REFERENCES:
patent: 4882399 (1989-11-01), Tesoro et al.
patent: 5260411 (1993-11-01), Tesoro et al.

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