Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1990-05-07
1991-05-28
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
525539, 528392, 528491, 528492, C08G 6702
Patent
active
050196456
ABSTRACT:
Certain linear alternating polymers of carbon monoxide and aliphatic .alpha.-olefin of 3 or more carbon atoms are characterized by a high degree of stereoregular character. Reduction of the degree of this stereoregular character, whether syndiotactic or isotactic, is achieved together with an increase in atactic character by contacting the stereoregular polymer with organic base at elevated temperature.
REFERENCES:
patent: 4849496 (1989-07-01), Watanabe et al.
Drent Eit
Wong Pui K.
Anderson Harold D.
Shell Oil Company
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