Heat-resistant stretched film and production process thereof
    2.
    发明授权
    Heat-resistant stretched film and production process thereof 失效
    耐热拉伸膜及其制造方法

    公开(公告)号:US5286814A

    公开(公告)日:1994-02-15

    申请号:US690318

    申请日:1991-04-26

    摘要: A heat-resistant stretched film is obtained by stretching a resin composition comprising 100 parts by weight of a poly(arylene sulfide) of a substantially linear structure and 5 to less than 100 parts by weight of a melt-stable poly(arylene thioether-ketone). The poly(arylene sulfide) has a melt viscosity of at least 1,000 poises as measured at 310.degree. C. and a shear rate of 200 sec.sup.-1. The poly(arylene thioether-ketone) has predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- groups are bonded in the para position to each other through the benzene ring, and has the following physical properties (a)-(c):(a) a melting point, Tm being 310.degree.-380.degree. C.;(b) a melt crystallization temperature, Tmc (420.degree. C./10 min) being at least 210.degree. C. and a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) being at least 10 J/g; and(c) a reduced viscosity being 0.3-2 dl/g at 25.degree. C. and a polymer concentration of 0.5 g/dl in 98% sulfuric acid.

    摘要翻译: 通过拉伸含有100重量份基本上线性结构的聚(亚芳基硫醚)和5至小于100重量份熔体稳定的聚(亚芳基硫醚 - 酮)的树脂组合物来获得耐热拉伸膜 )。 聚(亚芳基硫醚)在310℃下测得的熔体粘度至少为1,000泊,剪切速率为200秒-1。 聚(亚芳基硫醚酮)具有主要的式(*化学结构*)的重复单元,其中-CO-和-S-基通过苯环彼此键合在对位,并且具有以下物理 性质(a) - (c):(a)熔点,Tm为310-380℃。 (b)熔融结晶温度Tmc(420℃/分钟)至少为210℃,残余熔融结晶焓(ΔH)为420℃至10℃ /G; 和(c)在25℃下的比浓粘度为0.3-2dl / g,在98%硫酸中的浓度为0.5g / dl。

    Poly(arylene sulfide) sheet and production process thereof
    4.
    发明授权
    Poly(arylene sulfide) sheet and production process thereof 失效
    聚(亚芳基硫醚)片及其制备方法

    公开(公告)号:US5013823A

    公开(公告)日:1991-05-07

    申请号:US442109

    申请日:1989-11-28

    IPC分类号: B29C47/00 B29C47/88 B29D7/01

    摘要: A poly(arylene sulfide) sheet excellent in planarity and smoothness is formed of a poly(arylene sulfide) having a melt viscosity, .eta.* of 1,000-25,000 poises as measured at 310.degree. C. and a shear rate of 200 sec.sup.-1, and a melt crystallization temperature, Tc.sub.2 or 170.degree.-240.degree. C., wherein Tc.sub.2 is an exothermic peak temperature of crystallization which appears upon the measurement by a differential scanning calorimeter at a cooling rate of 10.degree. C./min after the polymer is heated from 23.degree. C. to 380.degree. C. at a rate of 10.degree. C./min and then held for 3 minutes at 380.degree. C. It has a surface roughness, Ra of 0.09 .mu.m or less on at least one side thereof and a degree of crystallization of at least 5%. Its number of flexings to break, Y satisfies the following equation (I):log Y.gtoreq.7.11-2.34log t (I)wherein t means a thickness (.mu.m) of the sheet. The sheet is produced by melt-extruding the poly(arylene sulfide) through a slit die into a sheet-like form and then cooling and crystallizing the sheet on a casting roll. The temperature, T (.degree.C.) of the casting roll is controlled to a temperature in a range satisfying the following equation (II):120.ltoreq.T.ltoreq.190-0.02t (II)wherein t means a thickness (.mu.m) of the sheet, thereby conducting the cooling and the crystallization of the sheet at one stage.

    Poly(arylene sulfide) sheet and production process thereof
    5.
    发明授权
    Poly(arylene sulfide) sheet and production process thereof 失效
    POLY(亚硫酸铝)片及其生产工艺

    公开(公告)号:US5100593A

    公开(公告)日:1992-03-31

    申请号:US639431

    申请日:1991-01-10

    IPC分类号: B29C47/00 B29C47/88 B29D7/01

    摘要: A poly(arylene sulfide) sheet excellent in planarity and smoothness is formed of a poly(arylene sulfide) having a melt viscosity, .eta..sup.* of 1,000-25,000 poises as measured at 310.degree. C. and a shear rate of 200 sec.sup.-1, and a melt crystallization temperature, Tc.sub.2 of 170.degree.-240.degree. C., wherein Tc.sub.2 is an exothermic peak temperature of crystallization which appears upon the measurement by a differential scanning calorimeter at a cooling rate of 10.degree. C./min after the polymer is heated from 23.degree. to 380.degree. C. at a rate of 10.degree. C./min and then held for 3 minutes at 380.degree. C. It has a surface roughness, Ra of 0.09 .mu.m or less on at least one side thereof and a degree of crystallization of at least 5%. Its number of flexings to break, Y satisfies the following equation (I):log Y.gtoreq.7.11-2.34 log t (I)wherein t means a thickness (.mu.m) of the sheet. The sheet is produced by melt-extruding the poly(arylene sulfide) through a slit die into a sheet-like form and then cooling and crystallizing the sheet on a casting roll. The temperature, T (.degree.C.) of the casting roll is controlled to a temperature in a range satisfying the following equation (II):120.ltoreq.T.ltoreq.190-0.02t (II)wherein t means a thickness (.mu.m) of the sheet, thereby conducting the cooling and the crystallization of the sheet at one stage.

    Heat-resistant film and production process thereof
    8.
    发明授权
    Heat-resistant film and production process thereof 失效
    耐热膜及其制造方法

    公开(公告)号:US5223585A

    公开(公告)日:1993-06-29

    申请号:US787860

    申请日:1991-11-05

    摘要: Disclosed herein is a heat-resistant film obtained by biaxially-stretching a composition which comprises (A) 50-90 parts by weight of a polyetheretherketone having predominant recurring units of the formula: ##STR1## and (B) 50-10 parts by weight of a substantially linear poly(arylene sulfide) having melt viscosity of at least 1,000 poises. A production process of such a heat-resistant film is also disclosed, which comprises biaxially stretching the above composition in a temperature range at least equal to the crystallization temperature (Tc) of the poly(arylene sulfide) but not higher than the crystallization temperature (Tc) of the polyetheretherketone.

    摘要翻译: 本文公开了通过双轴拉伸组合物获得的耐热膜,其包含(A)50-90重量份具有下列主题的重复单元的聚醚醚酮:(A)和(B)50-10重量份 的具有至少1,000泊的熔体粘度的基本上线性的聚(亚芳基硫醚)。 还公开了这种耐热膜的制造方法,其包括在至少等于聚(亚芳基硫醚)的结晶温度(Tc)但不高于结晶温度的温度范围内双轴拉伸上述组合物 Tc)的聚醚醚酮。