Heat-resistant stretched film and production process thereof
    1.
    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
    3.
    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.

    Heat-resistant film and production process thereof
    4.
    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。

    Poly(arylene sulfide) sheet and production process thereof
    6.
    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.