摘要:
Organopolysiloxane resin blended with alkyl-alkoxypolysiloxane resin plus a condensation catalyst is found to have reduced soil retention. Optionally, there may be added perfluoroalkyl resin for improved oil and water repellency.
摘要:
Le système-réservoir est fait d'un nontissé en filaments de polymères thermoplastiques, façonné en poche fermée contenant un principe actif soluble dans l'eau. La poche est destinée à assurer une libération prolongée, progressant de façon linéaire, du principe actif dans un milieu aqueux. Pour un principe actif donné, la cinétique de diffusion désirée est obtenue en ajustant, d'après la disponibilité du principe actif, la surface du nontissé et le degré d'hydrophilie de celui-ci. A cette fin, on l'imprègne, soit par un polysiloxane ou un sel d'ammonium quaternaire, soit par un composé perfluoré ou une résine acrylique-paraffine.
摘要:
A film-forming copolymer is formed by copolymerising 100 parts of a curable polyurethane resin and 10 to 100 parts of an organosilicon compound, consisting essentially of SiO₂, R₃SiO ½ and R′R₂SiO ½ units, the ratio of monovalent units to tetravalent units being from 0.4/1 to 2/1 and from 40 to 90% of all monovalent units being R′R₂SiO ½ units. R is a monovalent hydrocarbon group having up to 8 carbons and R′ denotes a OH-terminated polyoxyalkylene group. The invention also includes a method of making fabrics waterproof and permeable to water vapour by coating it with such copolymer.
摘要:
This invention relates to fabric conditioning formulations which contain siloxanes having a Cs + alkyl subsituent and which optionally have, in addition, polyoxyalkylene substituents. The presence of C s + alkyl substituents to improve the rewettablity of the fabrics conditioned therewith.
摘要:
A lubricating agent for processing thermoplastic synthetic fibres contains at least one new type of silyl polyether obtainable by a reaction between polyether of a special type derivable by ring-opening addition polymerization of cyclic ether monomers and halogenated substituted silane. If such lubricating agent is used appropriately during the processing of thermoplastic synthetic fibres, both the coefficient of fibre friction and the rate of generating tar can be reduced. The silyl polyethers of use as shown by the formulae. or where R 1 -R 5 may be alike or different, each representing hydrogen, alkyl group, cycloalkyl group, allyl group, phenyl group, alkylphenyl group or benzyl group, R 1 -R 3 are not all hydrogen, R. and R. are not both hydrogen and X, Y, and Y 2 represent individually chlorine, bromine or iodine.
摘要:
A carbon fiber bundle having a high abrasion resistance property and simultaneously being excellent in widening property is provided by a carbon fiber bundle with an adhered sizing agent including a carbon fiber bundle, and a sizing agent adhered to a surface of the carbon fiber bundle, wherein the sizing agent contains an epoxy compound, and shows an intersection of a storage modulus and a loss modulus at an angular frequency in the range of 1 × 10 5 to 1 × 10 9 rad/sec in a measurement at 25°C.