Abstract:
A method of making a filament wound tube having smooth surfaces. Fiber glass filaments are passed through successive resin baths containing particles of a wear resistant additive. These resin baths are deaerated to reduce the existence of voids and pits in the resin in the finished tube. The filaments are flattened and are slowly helically wound in a first layer onto a mandrel. Subsequent layers are overwound about the first layer, the resin is cured, and the filament wound tube formed thereby is removed from the mandrel.
Abstract:
1,199,747. Halogen-containing dicarboxylic acid-amine-phosphate reaction products. UNIVERSAL OIL PRODUCTS CO. 3 Oct., 1967 [5 Oct., 1966], No. 44987/67. Addition to 1,084,036. Heading C2C. [Also in Division C5] An acid-amine-phosphate reaction product is prepared by reacting (1) a polyhalopolyhydropolycyclicdicarboxylic acid of general formula in which X and Y are halogen, hydrogen or C 1 -C 10 alkyl, at least two X's being halogen, and n and p are 0, 1, or 2, or (2) an anhydride of such an acid, with a polyamine, and reacting the resultant intermediate product with an alkyl acid phosphate, pyrophosphate or acid thiophosphate using from 3 to 30 mol. of intermediate product per mol. of phosphate. The acid phosphate or thiophosphate is a mono- or di-alkyl ester or mixture thereof, preferably containing at least one C 6 -C 20 alkyl group, or is an acid phosphate or thiophosphate of an oxyalkylenated alcohol or phenol. The acid or anhydride may be reacted with the polyamine in the presence of a solvent and the reaction may either be carried out at 80-250‹ C., in which range water is eliminated from the product, or at less than 80‹ C. under mild conditions to avoid the elimination of water. Suitable polyamines include alkylene polyamines, N- alkyl-diaminoalkanes (especially those in which the N-alkyl group is C 8 -C 25 ), aromatic diamines and beta-alkylpolyamines. The products are used as stabilizing additives in lubricating oils and greases.
Abstract:
1,199,747. Halogen-containing dicarboxylic acid-amine-phosphate reaction products. UNIVERSAL OIL PRODUCTS CO. 3 Oct., 1967 [5 Oct., 1966], No. 44987/67. Addition to 1,084,036. Heading C2C. [Also in Division C5] An acid-amine-phosphate reaction product is prepared by reacting (1) a polyhalopolyhydropolycyclicdicarboxylic acid of general formula in which X and Y are halogen, hydrogen or C 1 -C 10 alkyl, at least two X's being halogen, and n and p are 0, 1, or 2, or (2) an anhydride of such an acid, with a polyamine, and reacting the resultant intermediate product with an alkyl acid phosphate, pyrophosphate or acid thiophosphate using from 3 to 30 mol. of intermediate product per mol. of phosphate. The acid phosphate or thiophosphate is a mono- or di-alkyl ester or mixture thereof, preferably containing at least one C 6 -C 20 alkyl group, or is an acid phosphate or thiophosphate of an oxyalkylenated alcohol or phenol. The acid or anhydride may be reacted with the polyamine in the presence of a solvent and the reaction may either be carried out at 80-250‹ C., in which range water is eliminated from the product, or at less than 80‹ C. under mild conditions to avoid the elimination of water. Suitable polyamines include alkylene polyamines, N- alkyl-diaminoalkanes (especially those in which the N-alkyl group is C 8 -C 25 ), aromatic diamines and beta-alkylpolyamines. The products are used as stabilizing additives in lubricating oils and greases.
Abstract:
A method of forming a tube with an inner wall having a high-wear resistance and a low coefficient of friction comprising: deaerating an uncured thermosetting resin, coating glass filaments with the resin, and winding the glass filaments about a rotating mandrel in a band at a pitch no greater than the bandwidth. A first layer of wound glass filaments is formed in a single axial pass along the mandrel, and this first layer is helically overwound with subsequent layers. The resin coating the wound glass filaments is thereafter cured and the resulting tube is removed from the mandrel.