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3509021
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Information
Patent Grant
3509021
References
Source
Patent Number
3,509,021
Date Filed
Not available
Date Issued
Tuesday, April 28, 1970
54 years ago
CPC
D21H17/50 - Acyclic compounds
C08G12/046 - one being urea or thiourea
C08G12/34 - and acyclic or carbocyclic compounds
C08L33/26 - Homopolymers or copolymers of acrylamide or methacrylamide
C08L61/22 - of aldehydes with acyclic or carbocyclic compounds
C08L61/30 - of aldehydes with heterocyclic and acyclic or carbocyclic compounds
D21H17/375 - Poly(meth)acrylamide
C08L61/20 - Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
US Classifications
162 - Paper making and fiber liberation
209 - Classifying, separating, and assorting solids
210 - Liquid purification or separation
525 - Synthetic resins or natural rubbers
528 - Synthetic resins or natural rubbers
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