Abstract: This invention relates to an apparatus and method for impregnating fibrous material, or members having organized capillary networks such as wood, with impregnating fluid and it comprises a pressure vessel in which material to be treated is placed. Impregnating fluid is introduced into the pressure vessel and the pressure is isostatically increased in a cntrolled manner thereby causing the impregnating fluid to be distributed throughout substantially all of the material.

Abstract: Cellulosic fiber-containing fabrics are made wrinkle resistant by a durable press process which comprises impregnating the fabric with an aqueous solution containing a water soluble acid, acid salt, or mixture thereof, capable of catalyzing the cross-linking reaction between formaldehyde and cellulose, and then exposing the impregnated fabric, while the fabric has a moisture content of above 20% by weight where the cellulose fibers are substantially completely swollen, to formaldehyde vapors and curing.

Abstract: Cellulosic fiber-containing fabrics are made wrinkle resistant by a durable press process which comprises impregnating the fabric with an aqueous solution containing an alkyl sulfonic acid or sulfuric acid, capable of catalyzing the cross-linking reaction between formaldehyde and cellulose, and then exposing the impregnated fabric, while the fabric has a moisture content of over 20% by weight where the cellulose fibers are substantially completely swollen, to formaldehyde vapors and curing.

Abstract: In the preparation of low friction thread for use in the manufacture of bearings the thread is first rendered bondable, is then coated in a bath of bonding resin, is led vertically out of the bath and the resin is cured to the B-stage, and the B-stage thread is wound into spools for subsequent use.

Abstract: Knitted cotton fabrics in tubular form are impregnated to 20 to 35% wet add-on of crosslinking agent by any of several techniques including sprinkling, spraying, printing, or slop padding the solution of crosslinking agent to the outer surfaces of the fabric tube, or transferring the solution of crosslinking agent from impregnated material to the outer surfaces of the fabric tube, followed by a mechanical agitation step wherein the impregnated tubes are mechanically agitated at elevated temperatures under closed conditions, thereby eliminating agent migration toward fabric surfaces during drying of the cotton containing knitted fabrics in chemical treatments for smooth-drying properties and dimensional stabilization.

Abstract: A composition for use in Deacidification of Paper, which comprises 0.1 to 20% by weight of methyl magnesium carbonate in an organic solvent, where the solvent is not harmful to the paper.

Abstract: A process for rendering cellulose and cellulose containing fabrics fire resistant by first impregnating the fibers with an aminoplast resin and polymerizing the resin while the fibers are wet and swollen. Thereafter, the fabric is impregnated with tetrakis (hydroxymethyl) phosphonium hydroxide, cured, washed and dried. The fabric obtained from this process possesses high fire-retardency values, soft hand, and tensile values similar to that of the untreated fabric.

Abstract: A support for electrophotographic material and electrostatic recording material which is improved in solvent resistance and electroconductivity can be produced by firstly fixing an anionic sizing agent into an untreated paper and then fixing a cationic high polymer electroconducting agent into thus treated paper or coating the same thereon. Preferably, the first step is carried out by size pressing.

Abstract: Polyester of trimellitic acid compound having an average molecular weight under about 4,000 and an acid number of at least 35 and starch paper sizing composition containing said polyester.