摘要:
The present invention provides a process for manufacturing acrylate esters of trinol, dinol, and didinol, which avoids the undesired thermopolymerization of the esters and provides highly pure monomers for the preparation of plastic lenses.
摘要:
Polybrominated bisaryl compounds containing bromomethyl or bromomethylene groups are provided, as well as flameproof polymeric formulations comprising the compounds. The novel compounds exhibit a good thermal stability, and are particularly suitable for flame-retarding polystyrene thermoplastic foams. A process for making the polybrominated bisaryl compounds is also provided.
摘要:
Polybrominated bisaryl compounds containing bromomethyl or bromomethylene groups are provided, as well as flameproof polymeric formulations comprising the compounds. The novel compounds exhibit a good thermal stability, and are particularly suitable for flame-retarding polystyrene thermoplastic foams. A process for making the polybrominated bisaryl compounds is also provided.
摘要:
Polyhalogenated benzyl esters having general formula (1), wherein X is halogen; n is an integer from 1 to 5; Y is an aliphatic chain, such as having at least 4 carbon atoms or a radical (2) wherein X has the same meaning as above, p is an integer from 0 to 5 and Z is (CH2)m where m is zero or an integer greater than zero. Y may be a saturated aliphatic chain, a linear or branched aliphatic chain having one or more unsaturations, or a substituted or unsubstituted aliphatic chain.