Method of reprocessing cured polysulfide and/or mercaptan elasto

Details Method of reprocessing cured polysulfide and/or mercaptan elasto Method of reprocessing cured polysulfide and/or mercaptan elasto

1992-12-21

1994-12-06

Marquis, Melvyn I.

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

Synthetic resins

Process of treating scrap or waste product containing solid...

524425, 525535, 525537, 528374, 528375, 528387, C08G 7512

Patent

active

053711114

ABSTRACT:
The method of reprocessing cured polysulfide and polymercaptan elastomers includes reacting an 0.5 to 400 percent-by-weight portion of a polysulfide and/or polymercaptan elastomer with at least one liquid di- or polymercapto compound, with a plasticizer and with a filling material and with an binding agent to form a polysulfide sealing material-base component. Then a polysulfide sealing material curing agent is added to the polysulfide sealing material-base component to form the reprocessed cured polysulfide sealing material with a Shore-A-Hardeness>40 and a tensile strength>1 MPa.

REFERENCES:
patent: 4623711 (1986-11-01), Morris et al.

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