摘要:
This invention relates to a novel composition for use in dental flosses or tapes. More particularly, it relates to novel compositions containing a base polymer, a block copolymer and a nonmigrating compatibilizer or plasticizer that, in combination in a blend, result in a floss or dental tape having good breaking strength, elongation, tenacity, nick resistance and gentleness to the gums.
摘要:
Filter arrangements for mist removal include a barrier media, usually pleated, and treated with a deposit of fine fibers. Filter arrangements may take the form of tubular, radially sealing elements; tubular, axial sealing elements; forward flow air cleaners; reverse flow air cleaners; and panel filters and can have multiple layers of fine fiber containing pleated media.
摘要:
Filter arrangements include a barrier media, usually pleated, treated with a deposit of fine fibers. The media is particularly advantageous at high temperature (greater than 140null F.) systems. Such systems may include engine systems and fluid compressor systems. Filter arrangements may take the form of tubular, radially sealing elements; tubular, axial sealing elements; forward flow air cleaners; reverse flow air cleaners; and panel filters.
摘要:
This invention relates to a novel composition for use in dental flosses or tapes. More particularly, it relates to novel compositions containing a base polymer, a block copolymer and a nonmigrating compatibilizer or plasticizer that, in combination in a blend, result in a floss or dental tape having good breaking strength, elongation, tenacity, nick resistance and gentleness to the gums.
摘要:
The invention concerns a method of processing polymer blends based on polyester or polyamide with a draw-off speed of .gtoreq.1500 m/min to produce filaments with an elongation at break of .ltoreq.180%, where a second amorphous polymer is added to the polyester or polyamide in the amount of 0.05 to 5 wt % and the polymer is a copolymer composed of at least two of the following monomer units:0 to 90 wt % A, wherein A is a monomer of formula CH.sub.2 .dbd.C(R)--COOR.sup.1, wherein R is --H or --CH.sub.3 and R.sup.1 is straight or branched chain C.sub.1 -C.sub.10 alkyl or cyclohexyl.0 to 40 wt % B, wherein B is a monomer of maleic acid or maleic anhydride, and5 to 85 wt % C, wherein C is a monomer of styrene or methyl substituted styrene such that (wt % A+wt % B+wt % C)=100, and these filaments are processed by a drawing process or a stretch texturing process at high speeds. Preferably R.sup.1 is methyl, ethyl, n-propyl, n-butyl, iso-butyl, 2-ethyl-butyl, 2-ethyl hexyl, n-hexyl, n-heptyl, or cyclohexyl. Preferably, C is styrene, .alpha.-methyl styrene, 3-methyl styrene, or 4-methyl styrene. Most preferably C is styrene.
摘要:
The present invention is directed to a monofilament made from a blend of a polyester having a polyhydric alcohol of 1,4-cyclohexane-dimethanol, and a polyamide. This blend is useful as an article of paper making machine clothing used in forming, pressing, or drying sections of a paper making machine when the blend is in the form of a fiber structure. The blends usefulness stems from its dry-heat strength and hydrolysis resistance.
摘要:
The invention relates to a nonwoven fabric made from a nylon and polyethylene blend. The addition of polyethylene enhances specific properties such as softness, lower production cost, improved process capabilities, and ease of further downstream processing such as bonding to other fabrics or itself.
摘要:
The present invention is directed to in situ reinforced thermoplastic fibers having improved mechanical properties and a method of making same. These composites have improved tensile strength and tensile moduli that exceed that predicted by composite theory under the rule of mixtures. The in situ composites can be used in woven preforms.
摘要:
An extruded monofilament is formed from a compatibilized blend of polyphenylene sulfide and a polyamide resin. The blend is compatibilized by the addition of a compatibilizing resin selected from the group consisting of chemically modified and functionalized polyolefins. Preferably, from about 25 to about 99 parts by weight of a polyphenylene sulfide resin and from about 75 to 1 parts by weight of at least one polyamide resin, together with from about 0.1 to 10 parts by weight of a compatibilizer are blended and extruded to form the monofilament. The resultant monofilament exhibits improved physical properties as compared to unblended polyphenylene sulfide resins (PPS), as well as uncompatibilized blends of PPS with other materials. The monofilaments prepared from these compatibilized blends are useful as components of industrial fabrics, particularly fabrics such as are used as belts on paper forming machines. The polymer blend and a process for the manufacture of the monofilaments are also provided.