摘要:
A particulate foam control agent which comprises from 1 to 30 parts by weight of an organic antifoam, from 45 to 99 parts by weight of a zeolite carrier for the antifoam and from 1 to 30 parts by weight of a film-forming binder, there being no silicone-based antifoam present in the particulate foam control agent. Also claimed are detergent compositions containing the foam control agent.
摘要:
A method of making a particulate foam control agent comprising 0.001 to 30 parts of silicone antifoam, 45 to 99 parts of a zeolite and O to 30 parts of a binder, preferably of a polycarboxylate-type, able to release at least some antifoam from the zeolite in the first 10 minutes of a washing cycle comprises depositing from 0.1 to 500% of the silicone antifoam of an organic surfactant onto the zeolite not later than depositing the silicone antifoam, at least 1 part of surfactant being used per 100 parts of the foam control agent. Also covered are detergent compositions and some foam control agents.
摘要:
A foam control agent comprising 100 parts by weight of a water-insoluble organic liquid, from 0.1 to 20 parts by weight of a first hydrophobic filler with a size of no more than 20µm, preferably silica, and from 0.1 to 20 parts by weight of a second hydrophobic filler having a size of at least 30µm, preferably an organopolysiloxane resin, said fillers being insoluble in the organic liquid. The foam control agent is particularly useful as an antifoam in detergent compositions, paper pulp manufacture, textile dyeing or cutting oils.
摘要:
A mechanical coupling comprises an input member (12,50), an output member (14,52) a chamber (16) associated therewith, within the chamber (16) a charge (35,55) of cured silicone composition in crumb form and means (28,58) for compressing the charge (35,55) to an extent sufficient to permit the compressed silicone to convey rotational motion from the input member (12,50) to the output member (14,52). A clutch (Fig.1) and a variable torque rate torsion bar (Fig.2) are described.
摘要:
Foam in an environment with free surface turbulence is controlled with a foam control agent which comprises (A) 5 to 90 parts by weight of an organopolysiloxane having at least 40% siloxane units with a substituent -Z z -R', wherein R' is a C₉₋₃₅ alkyl group, Z is a linking group with silicon and z is 0 or 1, provided more than 70% by weight of its carbon content is due to the groups -Z z -R', (B) 0.1 to 30 parts by weight of a finely divided hydrophobic particulate material, (C) 5 to 95 parts by weight of a hydrocarbon oil and (D) 0 to 20 parts by weight of an organosilicon MQ resin.
摘要:
An emulsion composition is described which comprises (a) an alkenylated silicone resin, (b) an alkenyl polydiorganosiloxane, (c) a silicone resin bearing SiH groups and (d) water. The emulsion composition may be combined with a precious metal catalyst to provide an emulsion release coating composition. The emulsion release coating composition may be applied to a substrate, for example paper, and cured thereon to provide an adhesive coating. Separation of a laminate formed from a substrate coated with said emulsion release coating composition and a adhesive coated article requires a relatively high delamination force.