392results about How to "good compatibility" patented technology

Synthesis and application of reaction type halogen-free phosphorus-containing flame retardant for polyurethane

The invention discloses synthesis and application of a reaction type halogen-free phosphorus-containing flame retardant for polyurethane. A phosphorus-containing monomer derivative is formed by a phosphorus-containing monomer 9, 10-dihydro-9-oxa-10-phospha- phenanthrene-10-oxide (DOPO) and unsaturated polycarboxylic acid or anhydride, further the phosphorus-containing monomer derivative and polyhydric alcohols are subjected to esterification reaction so as to form the reaction type halogen-free phosphorus-containing flame retardant which is liquid at a room temperature, the molecular weight of the flame retardant is 300-1000g/mol, a terminal group of the flame retardant is a hydroxide radical, and the degree of functionality of the flame retardant is 2-6. The application shows that the flame retardant has a very good compatibility with a polyurethane raw material system and can be mixed with a polyurethane raw material in any proportion. The flame retardant is used for preparing rigid polyurethane foam with the density of about 31kg/m<3> and has relatively good compression strength and high-low temperature size stability. The oxygen index of the polyurethane foam is increased to 23.9% from 19.2% of oxygen index of a blank sample; and the oxygen index of polyisocyanurate foam is increased to 25.2% from 20.3% of oxygen index of a blank sample. The flame retardant can be applied to the fields of rigid polyurethane foam, elastomers, synthetic leather slurry and the like.

Traumatic injury analgesic cataplasm preparation and preparation method thereof

InactiveCN101780169AGood compatibilityLarge drug loading capacity in matrix
The invention relates to a traumatic injury analgesic cataplasm and a preparation method thereof, the traumatic injury analgesic cataplasm is produced by formula raw materials of traumatic injury analgesic paste according to the process of the cataplasm and comprises a hydrophilic gel matrix, a non-woven fabric back-up material and a traumatic injury analgesic paste drug, and the traumatic injury analgesic paste drug consists of ground beetle, crude kusnezoff monkshood, nux vomica (stir-fried), rhubarb, rosewood heart wood, shinyleaf pricklyash root, baical skullcap root, amur corktree bark, giant knotweed rhizome, borneol, camphor, menthol, peppermint oil and methyl salicylate. The soluble matrix of the cataplasm has good compatibility with water-soluble and fat-soluble drugs, and the drug loading of the matrix is great, thereby being very applicable to medication features of multiple components and large dose of traditional Chinese medicine; compared with an adhesive plaster agent, the cataplasm is easier to soften the horny layer of skin, is conductive to transdermal absorption of the drug and has better air permeability, adhesion to the skin and moisture retention, thereby having the advantages of comfortable use, small irritation to the skin, repeated tearing and pasting, no pollution of clothes, no residue, no pain when tearing after the use and the like.
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