摘要:
Aldehydes are produced by unmodified rhodium catalyzed hydroformylation process in a homogeneous organic phase using a solution of unmodified rhodium catalyst and an organic acid in a total amount, calculated as acid equivalent, of from greater than 3 moles to 3000 moles of acid per mole of rhodium. The organic acid is selected from: saturated aliphatic monocarboxylic acids having from 5 to 13 carbon atoms in the molecule; saturated aliphatic dicarboxylic acids having from 5 to 13 carbon atoms in the molecule; sulphonic acids having from 1 to 12 carbon atoms in the molecule; and combinations thereof. Use of the process can lead to either a significant increase in conversion without reducing selectivity for the desired aldehyde or a reduction in the specific use of rhodium.
摘要:
A carboxylic ester of the formula in which A is —(CH2)x— where x=1.10, a process for its preparation which esters are useful lubricated and plasticizers for high molecular polymeric thermoplastics.
摘要:
A carboxylic ester of the formula in which A is —(CH2)x— where x=1–10, a process for its preparation which esters are useful lubricated and plasticizers for high molecular polymeric thermoplastics.
摘要:
The present invention relates to a copolymer composition comprising 5-95 pphwm of vinyl acetate and 95-5 pphwm of vinyl 3,5,5-trimethylhexanoate, wherein the corresponding 3,5,5-trimethylhexanoic acid has a content of the 3,5,5-trimethylhexanoic acid isomer of at least 88% by weight.Said copolymer is composed and synthesized so as to be useful in the formulation of binders for fibrous substrates such as woven or nonwoven products, paints, adhesives for porous or non-porous substrates, construction cementitious compositions, redispersible powders.
摘要:
Compositions containing an aqueous dispersion of selected polymers and selected polyaldehydes as crosslinking agents are described.Adhesives having very high resistance to boiling water can be produced from these formulations.
摘要:
Compositions containing an aqueous dispersion of selected polymers and selected polyaldehydes as crosslinking agents are described.Adhesives having very high resistance to boiling water can be produced from these formulations.