Do they have the best solderability or must you be able to solder whatever is provided? Rosin fluxes are based on solutions of rosin - a natural product obtained from trees - in an organic vehicle, typically isopropyl alcohol. Rosin contains small amounts of Abiatic Acid that, when heated,...
By halogen in the formula I is meant fluorine, chlorine, bromine or iodine. The expression alkyl on its own or as part of a substituent embraces branched-chain or straight-chain C1 - to C8 -alkyl groups; and lower alkyl denotes C1 -C4 -alkyl. Examples are methyl, ethyl, propyl, isop...
is characterised in that the base thereof is based on oil, which can be used to produce, for example, cream, lotion, fluid, massage, or balm based products which contain fail (oil). Surprisingly, the onion extract, which contains water, alcohol or water-alcohol, can be integrated into a...
the polymerization is terminated when a ratio (ratio by weight) of residual N-vinylpyrrolidone/residual vinyl acetate is 1/10 or more, and the alcohol is removed by distillation until the alcohol accounts for 10% by weight or less in a solution of the copolymer.说明...
, I am super-duper chuffed with the results. Even if I didn’t have my skin analysis done again, there is a significant difference to my skin ever since I started on this regime. My skin is now softer, brighter, the hyperpigmentation slightly lightened a...
a也可用75%的异丙基酒精水溶液以获得更好的清洁效果 Also the available 75% isopropyl group ethyl alcohol water-soluble fluid obtains a better clean effect [translate] aMandee's Introduction (MandeeTheGreat) Mandee的介绍(MandeeTheGreat) [translate] aOur factory shutdown is starting from 28th July ...
G1 is an hydroxy group or a precursor therefor, a primary amino group or a precursor therefor, or a substituted amino group; R6 is a bivalent alkylene group containing from 1 to 3 atoms in the bivalent linkage; n is a positive integer of 1 or 2; R1 can be an aromatic group contain...
An alcohol such as isopropanol or butanol can advantageously be used as a solvent. When the reaction has ended, the reaction mass is optionally taken up in a solvent to filter off the salt, and then the solvent is removed by distillation. Among the solvents which can be used for this purp...
A medium recording medium is provided which has a plurality of coated layers on a nonmagnetic base support, a least one of said coated layer containing a modified copolymer having introduced therein a
2. A binder according to claim 1 wherein the initiator is an alcohol of the formula R1OH wherein R1is alkyl of 1 to 20 carbons; alkenyl of 1 to 6 carbons; cycloalkyl; alkylphenol having 1 to 20 carbons in the alkyl group; alkoxyphenyl having 1 to 10 carbons in the alkoxy group; ...