摘要:
Inherently tacky, pressure-sensitive adhesive compositions useful in marking film applications are provided. The compositions comprise polymer particles prepared by emulsion polymerization of at least one monomer mixture. The monomer mixture comprises at least one alkyl acrylate, the alkyl group of which has from about 4 to 12 carbon atoms, preferably in an amount of from about 73% to 90% by weight, at least one unsaturated carboxylic acid containing from about 3 to 5 carbon atoms, preferably in an amount of from about 2% to 12% by weight, and at least one hard monomer, preferably present in an amount of from about 5% to 15% by weight. The particles have a mean diameter of about 300 nm or less, as determined by laser light scattering. Preferably the hard monomer comprises a styrenic monomer, more preferably both a styrenic monomer and an alkyl methacrylate. In some embodiments, the compositions are prepared by sequential polymerization of the first and second monomer charges. The compositions may also contain one or more internal or external crosslinkers.
摘要:
Inherently tacky, pressure-sensitive adhesive compositions useful in marking film applications are provided. The compositions comprise polymer particles prepared by emulsion polymerization of at least one monomer mixture. The monomer mixture comprises at least one alkyl acrylate, the alkyl group of which has from about 4 to 12 carbon atoms, preferably in an amount of from about 73% to 90% by weight, at least one unsaturated carboxylic acid containing from about 3 to 5 carbon atoms, preferably in an amount of from about 2% to 12% by weight, and at least one hard monomer, preferably present in an amount of from about 5% to 15% by weight. The particles have a mean diameter of about 300 nm or less, as determined by laser light scattering. Preferably the hard monomer comprises a styrenic monomer, more preferably both a styrenic monomer and an alkyl methacrylate. In some embodiments, the compositions are prepared by sequential polymerization of the first and second monomer charges. The compositions may also contain one or more internal or external crosslinkers.
摘要:
An emulsified pressure sensitive adhesive is provided which is based on a polymer containing from about 95 to 97.5% by weight of an alkyl ester of acrylic acid and from about 2.5 to 5% by weight of a mixture of carboxylic acids and a three component anionic surfactant system. The polymer is preferably tackified.
摘要:
Repulpable PSA compositions and constructions that exhibit high adhesive performance on a wide range of substrates are provided. In one embodiment, a PSA composition comprises a blend of two emulsion acrylic copolymers. The first type is a repulpable, emulsion acrylic copolymer that passes TAPPI UM 213. Preferably, the copolymer is prepared by sequential polymerization. The second type of copolymer is a non-repulpable, gpp or removable, repositionable, emulsion acrylic copolymer, also preferably prepared by sequential polymerization. The PSA compositions are inherently tacky and can be used in labels and tapes. In addition, they can be added to other PSAs as external tackifiers.
摘要翻译:提供了在宽范围的基底上表现出高粘合性能的可重复粘合剂组合物和结构。 在一个实施方案中,PSA组合物包含两种乳液丙烯酸共聚物的共混物。 第一种类型是通过TAPPI UM 213的可重新涂布的乳液丙烯酸共聚物。优选地,通过顺序聚合制备共聚物。 第二种类型的共聚物是不可重复使用的,gpp或可拆卸的,可重新定位的乳液丙烯酸共聚物,也优选通过顺序聚合制备。 PSA组合物固有地发粘,可用于标签和胶带。 此外,它们可以作为外部增粘剂添加到其他PSA中。
摘要:
The invention relates to new peptoid compounds of formula (I), as well as their use in the treatment of bacterial infections, such as those caused by vancomycin resistant microorganisms, and to compositions thereof.
摘要:
A method of producing a glow plug including a glow tube (5) with internal heating coil (4) and optionally regulating coils which are embedded therein using a ceramic filling, whereby a compaction of an area on a combustion chamber side of the glow tube (5) is performed using a recessing-reducing process with a radial feed.
摘要:
An ice breaking head for an ice producing machine is adjustable for producing harvested ice of selected sizes. The ice making machine has a cylinder, the inner surface of which produces commercial sheet ice. The ice is harvested by forcing the ice from out of the cylinder toward an ice breaking head. The position of ice breaking head is adjustable to vary the size of the ice harvested. The head has an ice breaking surface which contains fins for facilitating the breaking of the ice sheet. It is journalled on a mounting post which has keys or ribs of increasing heights which match corresponding keyway slots in the bore of the head so that the spacing of the head, and hence the size of the ice harvested, can be adjusted by changing the rotational position of the head on its mounting post.
摘要:
The invention relates to new peptoid compounds of formula (I), as well as their use in the treatment of bacterial infections, such as those caused by vancomycin resistant microorganisms, and to compositions thereof.
摘要:
The invention relates to new peptoid compounds of formula (I), as well as their use in the treatment of bacterial infections, such as those caused by vancomycin resistant microorganisms, and to compositions thereof.
摘要:
The invention relates to new peptoid compounds of formula (I), as well as their use in the treatment of bacterial infections, such as those caused by vancomycin resistant microorganisms, and to compositions thereof.