Patent ID: 11877710
Assignee: THE PROCTER & GAMBLE COMPANY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC A  B  C | IPC A  B  C

Claim 16:
17. A process of producing the cleaning implement according to claim 10, comprising the steps of:
a) producing an aqueous mixture M comprising
100 parts by weight of the melamine-formaldehyde precondensate,
2 to 4 parts by weight of the curative,
0.2 to 5 parts by weight of a surfactant mixture,
0.1 to 5 parts by weight of at least one salt of an inorganic acid and/or of an organic carboxylic acid,
1 to 40 parts by weight of the blowing agent,
0.1 to 5 parts by weight of the at least one linear polymer,
0 to 20 parts by weight of one or more further additives, and
25 to 60 parts by weight of water,

b) heating and foaming said mixture M using microwave radiation,
c) annealing the foam using hot air and/or nitrogen in a temperature range from 150° C. to 290° C.