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    • 7. 发明授权
    • Multi-layer heat-sealable polypropylene films
    • 多层可热封聚丙烯薄膜
    • US4956232A
    • 1990-09-11
    • US290131
    • 1988-12-27
    • Ricardo BalloniKevin M. DonovanJay K. Keung
    • Ricardo BalloniKevin M. DonovanJay K. Keung
    • B32B27/18B32B27/32C09J7/02
    • C09J7/0242C09J7/0296C09J2201/162Y10T428/2826Y10T428/2848Y10T428/31573Y10T428/31913Y10T428/31935
    • Multi-layer, heat-sealable polypropylene films are disclosed which possess good coefficient of friction, and thus good machinability, and which are also capable of forming good bonds with water based adhesives. The film structures consist essentially of(A) an outer heat sealable layer coextensively adherent to the upper surface of core layer (B), said outer layer (A) being formed from a polymer composition (a) consisting essentially of heat sealable resin compounded with one or more slip additives which are incompatible with polypropylene,(B) a core layer derived from a polymer composition (b) consisting essentially of an isotactic polypropylene compounded with one or more slip additives which are incompatible with polypropylene, and(C) an outer layer coextensively adherent to the lower surface of core layer (B), said outer layer (C) being formed from a polymer composition consisting essentially of isotactic polypropylene in the substantial absence of slip additives;wherein the total amount of slip additive in said film structure is effective to provide the outer surface of outer layer (A) with a coefficient of friction sufficient for high speed heat sealing packaging operations but insufficient to cause substantial hazing of said structure.
    • 公开了多层可热封的聚丙烯薄膜,其具有良好的摩擦系数,因此具有良好的机械加工性,并且还能够与水性粘合剂形成良好的粘结。 膜结构基本上由(A)与芯层(B)的上表面共同附着的外部可热封层组成,所述外层(A)由聚合物组合物(a)形成,聚合物组合物(a)主要由热可密封树脂 一种或多种与聚丙烯不相容的滑爽添加剂,(B)衍生自聚合物组合物(b)的芯层,其基本上由与聚丙烯不相容的一种或多种滑爽添加剂组合的全同立构聚丙烯组成,(C)外部 所述外层(C)由基本上由基本上不含滑爽添加剂的全同立构聚丙烯组成的聚合物组合物形成; 其中所述膜结构中的滑爽添加剂的总量有效地为外层(A)的外表面提供足以用于高速热封包装操作的摩擦系数,但不足以引起所述结构的实质性的混浊。
    • 8. 发明申请
    • Method of Making a Pneumatic Innerliner
    • 制造气动内衬的方法
    • US20120199273A1
    • 2012-08-09
    • US13501657
    • 2010-10-21
    • Shannon C. PorterJay K. Keung
    • Shannon C. PorterJay K. Keung
    • B29D30/06C08J3/28C08K5/435
    • B29D30/0005B29B13/023B29B13/06B29C71/02B29D30/0681B29D2030/0682B29K2021/00B60C2005/145B60C2005/147
    • This disclosure is directed to a method of preparing a continuous elastomeric length for a pneumatic innerliner comprising providing a continuous elastomeric length comprising a plasticizer and an elastomer; heating the continuous elastomeric length for a residence time at a temperature no higher than 15° C. above the flash point of the plasticizer; and cooling the length to form a heat-treated continuous elastomeric length having a level of plasticizer less than the level of plasticizer in the continuous elastomeric length. In certain embodiments, the heat-treated continuous elastomeric length or laminate comprising the heat-treated continuous length can be first cut to form a pneumatic innerliner unit, and splicing the pneumatic innerliner unit to itself to form a pneumatic innerliner. The heat-treated continuous elastomeric length or laminate comprising the heat-treated continuous length can be cut into the form of a sleeve to form a pneumatic innerliner sleeve, and the sleeve incorporated into a tire.
    • 本发明涉及一种制备用于气动内衬的连续弹性体长度的方法,包括提供包含增塑剂和弹性体的连续弹性体长度; 加热连续弹性体长度以在不高于增塑剂闪点15℃以上的温度下停留时间; 并冷却该长度以形成具有低于连续弹性体长度中的增塑剂水平的增塑剂水平的经热处理的连续弹性体长度。 在某些实施例中,包括经热处理的连续长度的经热处理的连续弹性体长度或层压体可以首先切割以形成气动内衬单元,并将气动内衬单元接合到其自身以形成气动内衬。 包含热处理连续长度的经热处理的连续弹性体长度或层压体可以被切割成套筒的形式以形成气动内衬套筒,并且套筒结合到轮胎中。