申请人:Bezwada Rao S.
公开号:US20120158127A1
公开(公告)日:2012-06-21
Absorbable polyurethanes, polyamides and polyester urethanes prepared from at least one compound selected from:
or the corresponding diamines or diisocyanates thereof, wherein each X independently represents —CH
2
COO—, —CH(CH
3
)COO—, —CH
2
CH
2
OCH
2
COO—, —CH
2
CH
2
CH
2
CH
2
CH
2
COO—, —(CH
2
)
y
COO— where y is 2 to 4 or 6 to 24, or —(CH
2
CH
2
O)
z′
CH
2
COO— where z′ is 2 to 24; each Y represents —COCH
2
O—, —COCH(CH
3
)O—, —COCH
2
OCH
2
CH
2
O—, —COCH
2
CH
2
CH
2
CH
2
CH
2
O—, —CO(CH
2
)
m
O— where m is 2 to 4 or 6 to 24, or —COCH
2
O(CH
2
CH
2
O)
n
— where n is 2 to 24; R′ is hydrogen, benzyl or straight-chained or branched alkyl; p is 1 to 4; and Rn represents one or more members selected from H, alkoxy, benzyloxy, aldehyde, halogen, carboxylic acid and —NO
2
, which is attached directly to an aromatic ring or attached through an aliphatic chain. Absorbable polymers prepared from these compounds are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention and other implantable medical devices.
可吸收的聚氨酯、聚酰胺和聚酯尿素是由至少一种选择自以下化合物或其相应的二胺或二异氰酸酯制备而成:其中每个X独立地表示-CH2COO-、-CH(CH3)COO-、-CH2CH2OCH2COO-、-CH2CH2CH2CH2CH2COO-、-(CH2)yCOO-,其中y为2至4或6至24,或-(CH2CH2O)z'CH2COO-,其中z'为2至24;每个Y表示-COCH2O-、-COCH(CH3)O-、-COCH2OCH2CH2O-、-COCH2CH2CH2CH2CH2O-、-CO(CH2)mO-,其中m为2至4或6至24,或-COCH2O(CH2CH2O)n-,其中n为2至24;R'为氢、苄基或直链或支链烷基;p为1至4;Rn表示选择自H、烷氧基、苄氧基、醛、卤素、羧酸和-NO2的一个或多个成员,它直接附着在芳香环上或通过脂肪链附着。从这些化合物制备的可吸收聚合物可用于药物输送、组织工程、组织粘合剂、粘着预防和其他可植入医疗器械。