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    • 8. 发明申请
    • BIODEGRADABLE POLYHYDROXYALKANOATE COPOLYMERS HAVING IMPROVED CRYSTALLIZATION PROPERTIES
    • 具有改进结晶性能的生物可降解聚羟基烷基酯共聚物
    • WO02055581A3
    • 2003-04-17
    • PCT/US0150462
    • 2001-12-20
    • PROCTER & GAMBLEAUTRAN JEAN-PHILIPPE MARIEMELIK DAVID HARRYSATKOWSKI MICHAEL MATTHEW
    • AUTRAN JEAN-PHILIPPE MARIEMELIK DAVID HARRYSATKOWSKI MICHAEL MATTHEW
    • C08L67/04C08L101/16C08G67/04
    • C08L67/04C08L2666/18
    • Compositions having improved crystallization properties and physical properties comprise (a) a continuous phase of first biodegradable polyhydroxyalkanoate comprising a copolymer, or a blend thereof, of at least two randomly repeating monomer units (RRMU), wherein the first RRMU has the structure (I): (I) wherein R is H, or C1 or C2 alkyl, and n is 1 or 2; and the second RRMU is different from the first RRMU and comprises at least one monomer selected from the group consisting of the structures (II) and (III): (II) wherein R is a C3-C19 alkyl or C3-C19 alkenyl, and (III) wherein m is from 2 to about 16, and wherein the copolymer has a melting point Tm1, and (b) a second crystallizable biodegradable polyhydroxyalkanoate homopolymer or copolymer, which comprises at least one randomly repeating monomer unit having the structure (IV): (IV) wherein R is H, or C1 or C2 alkyl, and p is 1 or 2, and further wherein the second biodegradable polyhydroxyalkanoate has a melting point Tm2, wherein Tm2 is at least about 20 DEG C greater than Tm1. The compositions are formed by solution or melt blending of the components (a) and (b) and may be formed into shaped articles.
    • 具有改善的结晶性能和物理性能的组合物包含(a)包含至少两个随机重复单体单元(RRMU)的共聚物或其共混物的第一可生物降解聚羟基链烷酸酯的连续相,其中第一RRMU具有结构(I) :(I)其中R 1是H,或C 1或C 2烷基,n是1或2; 并且第二RRMU与第一RRMU不同,并且包含至少一种选自结构(II)和(III)的单体:(II)其中R 2是C 3 -C 19烷基或C 3 -C 19 烯基和(III)其中m为2至约16,并且其中所述共聚物具有熔点Tm1,和(b)第二可结晶可生物降解的聚羟基链烷酸酯均聚物或共聚物,其包含至少一个具有结构 (Ⅳ):其中R 3为H或C 1或C 2烷基,p为1或2的式(Ⅳ),其中第二种可生物降解的聚羟基链烷酸酯具有熔点Tm2,其中Tm2为至少约20℃ 大于Tm1。 组合物通过组分(a)和(b)的溶液或熔融共混形成,并且可以形成成型制品。
    • 9. 发明申请
    • PLASTIC PRODUCTS COMPRISING BIODEGRADABLE POLYESTER BLEND COMPOSITIONS
    • 包含生物可降解聚酯混合组合物的塑料制品
    • WO0228969A2
    • 2002-04-11
    • PCT/US0142523
    • 2001-10-05
    • PROCTER & GAMBLEAUTRAN JEAN PHILIPPE MARIE
    • AUTRAN JEAN-PHILIPPE MARIE
    • C08L67/02C08L67/04C08L101/16
    • C08L67/02C08L67/04C08L2666/18
    • The present invention relates to tough and ductile biodegradable, aliphatic polyester blend compositions and methods for preparing such compositions. It relates to products made out of such blend compositions, including, but not limited to, films, fibers, nonwovens, sheets, coatings, binders, foams and molded products for packaging. The products exhibit a desirable combination of high strength, ductility and toughness, while maintaining flexibility, biodegradability and compostability. The products are useful for a variety of biodegradable articles, such as diaper topsheets, diaper backsheets, disposable wipes, shopping and lawn/leaf bags, agricultural films, disposable garments, medical disposables, paper coatings, biodegradable packaging, binders for cellulose fibers or synthetics, and the like.The polyester blend of the present invention comprises:(a) a copolymer comprising two randomly repeating monomer units wherein the first randomly repeating monomer unit has the structure (I) wherein R is H, or C1 or C2 alkyl, and n is 1 or 2. The second RRMU comprises at least one monomer selected from the group consisting of the structures (II) and (III). In said formula (II), R is a C3-C19 alkyl or C3-C19 alkenyl, and in said formula (III) m is from 2 to about 16; wherein at least about 50 mole % of the copolymer comprises RRMUs having the structure of the first RRMU of formula (I) and wherein the polyhydroxyalkanoate is present at a level of at least about 20%, by weight, of the total of the polyhydroxyalkanoate and the aliphatic ester polycondensate. In formula (i) R is H or a C1-2 alkyl and n is 1 or 2; and the second randomly repeating monomer unit has the structure (ii) wherein R is a C3-19 alkyl or alkenyl; and (b) an aliphatic ester polycondensate synthesized from an aliphatic polyhydric alcohol and an aliphatic polycarboxylic acid compound.
    • 本发明涉及韧性和延性可生物降解的脂族聚酯共混物组合物和制备这种组合物的方法。 它涉及由这种共混组合物制成的产品,包括但不限于膜,纤维,无纺布,片材,涂料,粘合剂,泡沫和用于包装的模制产品。 该产品具有高强度,延展性和韧性的理想组合,同时保持柔韧性,生物可降解性和可堆肥性。 该产品可用于各种可生物降解的制品,例如尿布顶片,尿布底片,一次性擦拭物,购物和草坪/叶袋,农用薄膜,一次性衣服,医疗一次性用品,纸张涂层,可生物降解的包装,纤维素纤维或合成物的粘合剂 本发明的聚酯共混物包括:(a)包含两个随机重复的单体单元的共聚物,其中第一个无规重复单体单元具有其中R 1为H的结构(I),或C 1或C 2 烷基,n为1或2.第二RRMU包含至少一种选自结构(II)和(III)的单体。 在所述式(II)中,R 2为C 3 -C 19烷基或C 3 -C 19烯基,在所述式(III)中,m为2至约16; 其中所述共聚物的至少约50摩尔%包含具有式(I)的第一RRMU的结构的RRMU,并且其中所述聚羟基链烷酸酯的含量为所述聚羟基链烷酸酯的总量的至少约20重量% 脂肪族酯缩聚物。 在式(ⅰ)中,R 1是H或C 1-2烷基,n是1或2; 并且第二个无规重复的单体单元具有其中R 2为C 3-9烷基或链烯基的结构(ⅱ); 和(b)由脂肪族多元醇和脂肪族多元羧酸化合物合成的脂肪族酯缩聚物。