摘要:
A polyamide diol is prepared by the reaction of a diamine comprising a polymeric diamine and a non-polymeric diamine, dicarboxyic acid, and a hydroxy substituted carboxylic acid. A polyurethane is prepared by the reaction of the polyamide polyol with a diisocyanate.
摘要:
Silicone rubber matrices are used to contain and dispense volatile, organic liquids. The articles, as dispensors are improved by the use of silicone rubber matrices prepared by the curing of silicone fluids selected from the group consisting of polydiphenylsiloxane, polymethylphenylsiloxane, polymethyl-3,3,3-trifluoropropylsiloxane and a polydimethylsiloxane wherein 5% or more of the methyl groups of the polydimethylsiloxane are replaced by phenyl or polar aliphatic groups. Higher loadings of the organic liquid into the rubber matrix are achieved without syneresis occurring.
摘要:
Rosin esters having suitable color, color stability and/or odor to make them useful for non-woven applications, to non-woven products made from and/or comprising rosin esters, and to methods of making and using such rosin esters and products.
摘要:
A device for dispensing volatile fragrances comprises a silicone rubber hollow body, and a liquid volatile fragrance contained within the hollow. The liquid volatile fragrance diffuses through the silicone rubber body to the outer surface where it is volatilized to disperse in the surrounding atmosphere.
摘要:
A hot melt adhesive comprising an adhesive polymer and a modified rosin-terpene, preferably a phenol modified rosin terpene. The adhesive is particularly useful in packaging applications.
摘要:
Silicone rubber matrices are used to contain and dispense volatile, organic liquids. The articles, as dispensors are improved by the addition of a compatibilizing agent to reduce migration of the organic liquid out of the matrix in the form of liquid drops or films. Higher loadings of the organic liquid into the rubber matrix are achieved without syneresis occurring.
摘要:
A process for producing rosin resins comprising reacting together rosin and phenolic compound and/or terpene-phenol resin, in the presence of a Brønsted acid. These resins may be used as tackifiers in adhesive formulations, including chloroprene contact cements.
摘要:
A device for dispensing volatile fragrances comprises a hollow body, and a liquid volatile fragrance contained within the hollow. The liquid volatile fragrance diffuses through a closure member made of a silicone rubber body, to the outer surface where it is volatilized to disperse in the surrounding atmosphere.
摘要:
The disclosure is of an improved process for the Oppenauer oxidation of geraniol/nerol to obtain citral. The improvement comprises the use of selected tertiary aldehydes as hydrogen acceptors.