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1. 发明授权

US3867180A Product and process 失效
标题翻译：产品和工艺
公开(公告)号：US3867180A
公开(公告)日：1975-02-18
申请号：US36366473
申请日：1973-05-24
申请人： DU PONT
发明人： SCHICK MARY MARGARET
IPC分类号： D04H1/00 , D06M13/256 , D06M15/53 , D06M15/647 , B44D1/08 , B44D1/16
CPC分类号： D04H1/00 , D06M13/256 , D06M15/53 , D06M15/647
摘要： A process is disclosed for reducing the noise level created when a compressive load is placed on a bonded reticulated batt of randomly arranged pneumatic closed-cell foamed fibers so as to flex the fibers. The reduction is achieved by coating the batt, prior to coating it with an adhesive binder, with an antiadhesive which is a selected polysiloxane, a selected polyoxyethylene polyoxypropylene glycol or a selected alkyl sodium sulfonate. The anti-adhesive prevents formation of weak bonds between the fiber and the adhesive which have been found to be the source of the noise (created when the weak bonds break) but does not prevent the formation of the usual strong bonds between the fiber and the adhesive.
摘要翻译：公开了一种用于降低当压缩载荷放置在随机布置的气密闭孔发泡纤维的粘合网状毡上以产生的噪声水平以使纤维弯曲时的噪声水平的方法。通过在用粘合剂粘合剂涂覆之前，用抗粘合剂（其为选择的聚硅氧烷，选择的聚氧乙烯聚氧丙烯二醇或选择的烷基磺酸钠）涂覆絮凝剂来实现还原。防粘剂防止纤维和粘合剂之间形成弱键，这些弱键已经被认为是噪声源（当弱键断裂时产生），但不能防止在纤维和纤维之间形成通常的强键胶粘剂。

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