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1. 发明申请

WO1996038495A1 GAS-PERMEABLE MEMBRANE 审中-公开
标题翻译：气体渗透膜
公开(公告)号：WO1996038495A1
公开(公告)日：1996-12-05
申请号：PCT/US1996007939
申请日：1996-05-29
申请人： LANDEC CORPORATION
发明人： LANDEC CORPORATION , CLARK, Raymond , STEWART, Ray, F. , YOON, Valentine, Y. , SCHULTZ, Donald , McCLARY, Bradley
IPC分类号： C08J09/36
CPC分类号： B32B5/18 , B65D81/2069 , B65D85/34 , B65D2565/388 , C08J5/2275 , C08J9/36 , C08J2333/12 , Y10T428/1321 , Y10T428/1334 , Y10T428/1352 , Y10T428/24322 , Y10T428/249978 , Y10T428/24998 , Y10T428/259 , Y10T428/31663 , Y10T428/31855 , Y10T428/31928 , Y10T428/31935
摘要： Novel gas-permeable membranes which are particularly useful in the packaging of fresh cut fruit and vegetables, and other respiring biological materials. The membranes have an O2 permeability of at least 775,000 ml/m .atm.24hrs, a P10 ratio of at least 1.3, and a ratio of CO2 permeability to O2 permeability (R) of at least 1.5, and are made by forming thin polymeric coatings on microporous polymeric films. Preferred coating polymers are side chain crystalline polymers. Preferred microporous films contain inorganic fillers, particularly such films based on ultrahigh molecular weight polyethylene or polypropylene. Figure (1) illustrates how O2 permeability and R ratio vary for different coating polymers and microporous films.
摘要翻译：新颖的透气膜特别适用于新鲜切割水果和蔬菜的包装以及其他呼吸生物材料。膜的O2渗透率至少为775,000ml / m 2，24小时，P10比至少为1.3，CO 2渗透率与O 2渗透率（R）之比至少为1.5，并由在微孔聚合物膜上形成薄的聚合物涂层。优选的涂料聚合物是侧链结晶聚合物。优选的微孔膜包含无机填料，特别是基于超高分子量聚乙烯或聚丙烯的这种膜。图（1）示出了不同涂层聚合物和微孔膜的O2渗透性和R比如何变化。

2. 发明申请

WO1998011166A1 POLYMER COMPOSITION COMPRISING A MODIFYING AGENT 审中-公开
标题翻译：包含修饰剂的聚合物组合物
公开(公告)号：WO1998011166A1
公开(公告)日：1998-03-19
申请号：PCT/US1997016019
申请日：1997-09-10
申请人： LANDEC CORPORATION
发明人： LANDEC CORPORATION , BITLER, Steven, P. , STEWART, Ray, F. , KAMP, David, A. , MEYERS, Paul, A. , TAFT, David, A. , SCHULTZ, Donald, A.
IPC分类号： C08L101/00
CPC分类号： C08L101/00 , C08L2666/14
摘要： Novel modifying agents contain a sharply-melting crystalline polymer ingredient, preferably a side chain crystalline (SCC) moiety, and an active chemical ingredient which is physically but not chemically bound to the polymeric ingredient. Such modifying agents, especially when in the form of particles, can be placed in contact with a matrix, will not modify the matrix below the crystalline melting point Tp, but will rapidly modify the matrix above Tp. The active chemical ingredient can react with the matrix, catalyse a reaction of the matrix, or inhibit a reaction of the matrix. Also described are various compositions which comprise (1) a matrix material, e.g. an epoxy resin precursor, (2) a modifying agent containing a sharply melting crystalline polymer ingredient and an active chemical ingredient (which may be physically or chemical bound to the polymeric ingredient), and (3) an additional ingredient which confers desired properties on the mixture or on a product obtained from the mixture.
摘要翻译：新型改性剂含有急剧熔化的结晶聚合物成分，优选侧链结晶（SCC）部分，以及物理上但不与化合物结合的活性化学成分。这种改性剂，特别是当以颗粒形式时，可以与基质接触，不会将基质改性成低于结晶熔点Tp，而是会快速修饰Tp以上的基质。活性化学成分可与基质反应，催化基质的反应或抑制基质的反应。还描述了各种组合物，其包括（1）基质材料，例如环氧树脂前体，（2）包含急剧熔化的结晶聚合物成分和活性化学成分（其可以物理或化学结合到聚合物成分）的改性剂，和（3）赋予所需性质的另外的成分混合物或从混合物获得的产物上。

3. 发明申请

WO1994024219A2 THERMOPLASTIC ELASTOMERS 审中-公开
标题翻译：热塑弹性体
公开(公告)号：WO1994024219A2
公开(公告)日：1994-10-27
申请号：PCT/US1994004138
申请日：1994-04-14
申请人： LANDEC CORPORATION
发明人： LANDEC CORPORATION , BITLER, Steven, P. , CLARKE, Raymond , KAMP, David, A. , LARSON, Andrew , STEWART, Ray, F. , YOON, Valentine, Y. , MEIER, Dale , FREELIN, Robert, G.
IPC分类号： C09J07/02
CPC分类号： C09J153/00 , C05G3/0029 , C05G3/0047 , C06B45/10 , C06B45/18 , C08F283/006 , C08F293/00 , C08G18/10 , C08G18/4854 , C08G81/00 , C08G81/02 , C08G2170/40 , C08G2250/00 , C08G2390/00 , C08L2666/02 , C08L2666/04 , C09J7/387 , C09J133/06 , C09J171/02 , C09J2201/606 , Y10T428/28 , Y10T428/2852 , Y10T428/2883 , Y10T428/2887 , Y10T428/2891 , Y10T428/2896 , C08G18/48
摘要： Pressure-sensitive adhesives (PSA's) and hot melt adhesives having good shear strength contain a thermoplastic elastomer in which the hard (A) blocks, or the soft (B) blocks, or both, contain side chain crystallizable (SCC) moieties. PSA's of this type in which (a) the A blocks contain SCC moieties and (b) the B blocks are crystalline, are novel.
摘要翻译：压敏粘合剂（PSA）和具有良好剪切强度的热熔性粘合剂含有其中硬质（A）嵌段或软质（B）嵌段或两者含有侧链可结晶（SCC）部分的热塑性弹性体。这种类型的PSA，其中（a）A嵌段含有SCC部分和（b）B嵌段是结晶的，是新颖的。

4. 发明申请

WO1993007194A1 THERMOPLASTIC ELASTOMERS 审中-公开
标题翻译：热塑弹性体
公开(公告)号：WO1993007194A1
公开(公告)日：1993-04-15
申请号：PCT/US1992008508
申请日：1992-10-06
申请人： LANDEC CORPORATION
发明人： LANDEC CORPORATION , BITLER, Steven, P. , STEWART, Ray, F. , KAMP, David, A. , FREELIN, Robert, G. , YOON, Valentine, Y.
IPC分类号： C08G18/48
CPC分类号： C08G81/02 , A61K47/34 , C05G3/0029 , C05G3/0047 , C06B45/10 , C06B45/18 , C08F283/006 , C08F293/00 , C08G18/10 , C08G18/4854 , C08G18/4858 , C08G81/00 , C08G2170/40 , C08G2250/00 , C08G2390/00 , C08L2666/04 , C09J171/02 , C08G18/48
摘要： A novel thermoplastic elastomer (TPE) which comprises (i) polymeric A blocks in which there are side chains comprising crystallizable moieties having a melting point Tq, and (ii) at least one amorphous polymeric B block having a glass transition point, Tgs, which is less than (Tq - 10) DEG C. The relative proportions and molecular weights of the A and B blocks can be adjusted so as to produce desired physical properties with comparatively little change in Tq, which depends chiefly upon the nature of the crystallizable moieties, which may be for example n-alkyl groups containing 12 to 50 carbon atoms. The novel TPE's show a sharply reduced viscosity in the region of Tq, and can be melt-processed at temperatures close to Tq. The novel TPE's are useful in the form of compositions, shaped articles and assemblies which comprise one of the novel TPE's and a second component which is mixed with, or surrounded by, or surrounds or otherwise provides a substrate for, the TPE. Preferred second components are explosives and other energetic materials, pharmaceuticals, seeds, perfumes, deodorizers, pest control agents, herbicides, insecticides, fungicides, biologically active materials, agrichemicals, and disinfectants. Second components can be released from such a composition or shaped article by a natural increase in the ambient temperature or by heating the composition or article to a temperature at least equal to Tq by means of heat which is (i) generated artificially or (ii) generated by a mammalian body and/or (iii) is conveyed artificially to the composition, article or assembly.
摘要翻译：一种新型热塑性弹性体（TPE），其包含（i）聚合物A嵌段，其中存在包含具有熔点Tq的可结晶部分的侧链，和（ii）至少一个具有玻璃化转变点的无定形聚合物B嵌段，其Tg 小于（Tq-10）℃。可以调节A和B嵌段的相对比例和分子量，以便产生所需的物理性质，其中Tq的变化相对较小，这主要取决于可结晶部分的性质，其可以是例如含有12至50个碳原子的n-烷基。新型TPE在Tq区域显示出显着降低的粘度，并可在接近Tq的温度进行熔融加工。新型TPE可用于组合物，成型制品和组件的形式，其包含新型TPE之一和与TPE混合或围绕或围绕或以其它方式提供底物的第二组分。优选的第二组分是爆炸物和其它高能材料，药物，种子，香料，除臭剂，害虫控制剂，除草剂，杀虫剂，杀真菌剂，生物活性物质，农药和消毒剂。可以通过环境温度的自然增加或通过加热组合物或制品至组合物或制品至少等于Tq的温度，通过以下方式产生第二组分或成型制品：（i）人造或（ii）由哺乳动物身体产生和/或（iii）被人工地输送到组合物，制品或组装体上。

5. 发明申请

WO1998025710A1 AQUEOUS DISPERSIONS OF CRYSTALLINE POLYMERS AND USES 审中-公开
标题翻译：水性聚合物和用途的水性分散体
公开(公告)号：WO1998025710A1
公开(公告)日：1998-06-18
申请号：PCT/US1997022772
申请日：1997-12-12
申请人： LANDEC CORPORATION
发明人： LANDEC CORPORATION , STEWART, Ray, F. , BALACHANDER, Natarajan , YOON, Valentine, Y. , BITLER, Steven, P. , PHAN, Loc
IPC分类号： B05D07/00
CPC分类号： A61Q5/06 , A01C1/06 , A61K8/0237 , A61K8/8152 , A61K8/8158 , A61K2800/54 , A61Q5/00 , B05D7/00 , C09D133/14 , D06M15/263 , D06M2200/20
摘要： Aqueous dispersions of crystalline polymers based on hydrophobic monomers, preferably on a mixture of hydrophobic and hydrophilic monomers which contains a crosslinking monomer, particularly side chain crystalline (SCC) polymers. The dispersions are useful for providing coatings on substrates, particularly on seeds (whose dormancy is thus extended) and on fibrous substrates, particularly human hair (which thus becomes heat-settable).
摘要翻译：基于疏水单体的结晶聚合物的水分散体，优选含有交联单体，特别是侧链结晶（SCC）聚合物的疏水和亲水单体的混合物。分散体可用于在基材上，特别是在种子（其休眠由此延伸）上提供涂层以及在纤维基材上，特别是人发（因此变得可热固化）上。

6. 发明申请

WO1996027641A1 POLYMERIC COMPOSITION 审中-公开
标题翻译：聚合物组合物
公开(公告)号：WO1996027641A1
公开(公告)日：1996-09-12
申请号：PCT/US1996003023
申请日：1996-03-06
申请人： LANDEC CORPORATION
发明人： LANDEC CORPORATION , BITLER, Stephen, P. , STEWART, Ray, F. , WANTHAL, Mark, A.
IPC分类号： C08L101/00
CPC分类号： C08L63/00 , C08G59/18 , C08J3/24 , C08L101/00 , H05K3/285 , C08L2666/02
摘要： Novel modifying agents contain a sharply-melting crystalline polymer moiety, preferably a side chain crystalline (SCC) moiety, and an active chemical moiety. Such modifying agents, especially when in the form of particles, can be placed in contact with a matrix, will not modify the matrix below the crystalline melting point Tp, but will rapidly modify the matrix above Tp. The active chemical moiety can react with the matrix, catalyze a reaction of the matrix, or inhibit a reaction of the matrix. Particularly useful compositions are polymer precursors which are storage-stable at low temperatures but which are rapidly converted to cross-linked resins when heated to temperatures above Tp, optionally in the presence of light.
摘要翻译：新型改性剂含有急剧熔化的结晶聚合物部分，优选侧链结晶（SCC）部分和活性化学部分。这种改性剂，特别是当以颗粒形式时，可以放置在与基质接触的位置，不会将基质改性成低于结晶熔点Tp，而是会快速地改变Tp以上的基体。活性化学部分可以与基质反应，催化基质的反应或抑制基质的反应。特别有用的组合物是在低温下储存稳定但在加热至高于Tp的温度时可快速转化成交联树脂的聚合物前体，任选地在光存在下。

7. 发明申请

WO1993021967A1 ORTHOPEDIC CASTS 审中-公开
公开(公告)号：WO1993021967A1
公开(公告)日：1993-11-11
申请号：PCT/US1993003962
申请日：1993-04-28
申请人： LANDEC CORPORATION
发明人： LANDEC CORPORATION , STEWART, Ray, F. , YOON, Valentine, Y. , LARSON, Andrew, W. , ROSS, Thomas, W. , GREENE, Lawrence, C. , KAMP, David, A. , SCHMITT, Edward, E.
IPC分类号： A61L15/14
CPC分类号： A61L15/12 , A61B2017/00902 , A61F5/058 , A61F13/04 , C08L67/04
摘要： Orthopedic casts which comprise a casting polymer of melting point Tm which is preferably from 40 to 60 DEG C. The casting polymer is preferably coated onto an elastically deformed fabric, so that the cast recovers when heated to a temperature above Tm. The cast preferably has an air flow permeability of 10 to 35 % resulting from the presence of apertures of area 0.01 to 0.08 cm , so that it can be rapidly heated by means of a hot air gun. Preferred casting polymers comprise a side chain crystallizable (SCC) polymer, particularly one containing units derived from styrene or another high Tg monomer. The addition of certain other polymers, e.g. an ethylene/vinyl acetate copolymer, and/or certain inorganic fillers, e.g. calcium carbonate, wollastonite and talc, results in improved balance of tensile strength and elongation.
摘要翻译：包含熔点Tm优选为40〜60℃的铸塑聚合物的矫形铸件。优选将铸塑聚合物涂覆在弹性变形的织物上，使得当加热至高于Tm的温度时，铸件回收。优选地，由于存在0.01至0.08cm 2的孔的空气流动渗透率为10至35％，从而可以通过热风枪快速加热。优选的浇铸聚合物包括侧链可结晶（SCC）聚合物，特别是含有衍生自苯乙烯或另一高Tg单体的单元的聚合物。加入某些其它聚合物，例如乙烯/乙酸乙烯酯共聚物，和/或某些无机填料，例如。碳酸钙，硅灰石和滑石，导致拉伸强度和伸长率的平衡改善。

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