Abstract:
Polycaprolactones are capped with OO-t-alkylperoxy carbonate groups useful in the preparation of polycaprolactone block and graft copolymers, processes for their preparation and use and intermediates suitable for use in said processes as well as the use of said copolymers as compatibilizing agents for blends of immiscible polymers are provided. The peroxy terminated poly(e-caprolactones) are of formula I:
(A-X-) m -R-(-X'-B) n I
wherein: A is
B is
m is an integer of 0 to 3, n is an integer of 1 to 4 and m + n is an integer of 1 to 4; R¹, R² and R³ can be, e.g., methyl, y is an integer and may vary from 0 to 10,000, x is an integer and may vary from 4 to 22,000, and (y)(m) + (x)(n) is an integer and may vary from 4 to 22,000; X and X'can be, e.g., -O- and R can be, e.g., an unsubstituted aliphatic radical.
Abstract translation:式(A-X)m-R-(X'-B)n(I)的过氧端基聚(ε-己内酯)是新的。 A = H-(O-(CH 2)5 -C(O))y - ; B =(i); m = 0-3; n = 1-4; (m + n)= 1-4; R1,R2 = 1-4C烷基; R3 = 1-12C烷基或2-12C炔属; y = 0-10000; x = 4-22000; (y)(m)+(x)(n)= 4-22000; X,X'= -O-或-N(R 4) - ; R =选择 substd。 脂族,脂环族,芳族或芳脂族(二,三或四)基; 当n + m = 1时,R = opt。 substd。 选自1-20C脂肪族,5-18C脂环族,6-14C芳族,7-22C芳族脂族和(非)芳族5-12C杂环; 当n + m = 2时,R = opt。 substd。 选自2-20C脂族,4-20C脂族基,被1-3个-O-,-S-或-N(R4)-gps间隔的二价基团。 在链中,条件是多个杂原子是sepd。 彼此之间并且双基链末端至少为2C,5-18C脂环族,6-12C芳族化合物,其中R是具有2个自由价的烃和芳族碳环单元,和7-22C芳脂族; 当n + m = 3时,R = opt。 substd。 选自3-20C脂族,5-18C脂环族,6-14C芳族和7-22C芳脂肪族; 当n + m = 4时,R = opt。 substd。 四价选自4-20C脂族,6-18C脂环族,6-14C芳族和7-22C芳脂肪族; R4 = H或opt。 substd。 1-20C脂肪族,5-18C脂环族,6-14C芳族或7-22C芳脂肪族; 和替代品。 对于R和R 4 = Cl,Br,1-8C烷基,1-12C烷氧基,6-10C芳氧基和/或氰基,以及另外的取代基。 R = 1-4C酰氧基和/或(甲基)丙烯酰氧基。
Abstract:
Un procédé de recouvrement de verre par procédé chimique de dépôt en phase gazeuse, à une température inférieure à 200 °C et à pression atmosphérique, d'un mélange gazeux d'un précurseur d'oxyde stannique, d'un précurseur de dioxyde de silicium et d'un agent accélérateur tel que le phosphite de triéthyle, permet d'obtenir des vitesses de dépôt supérieures à 350 Å par seconde. La couche du matériau devant être déposée peut être combinée avec d'autres couches pour produire un article présentant des caractéristiques spécifiques telles qu'une puissance émissive, un indice de réfraction, une résistance à l'abrasion et une apparence régulés.
Abstract:
Shaped, dust-free dry wire drawing compound lubricants having at least one reproducibly controlled dimension and methods for their preparation comprising the steps of conglutinating and pressure forming the lubricant composition.
Abstract:
The present invention relates to a partial ester derived from the reaction product of an oxirane containing acid or derivative thereof, and a reactive hydroxyl compound selected from the group consisting of diols, triols, di-diols and 1,4-dihydroxy butane and a halogen containing polymer compositon thereof. The oxirane compound can be derived from the group consisting of epoxidized vegetable oil, epoxidized fish oil, an aliphatic or arylaliphatic containing craboxyl compound having an oxirane group in the aliphatic chain.
Abstract:
Partial or total separation of a mixture of vinylidene chloride and 1,1-dichloro-1-fluoroethane by liquid-liquid extraction with solvents having a Hansen solubility parameter of about 30.8-32.0, such as ethanolamine.