公开(公告)号：US4963209A

公开(公告)日：1990-10-16

申请号：US317817

申请日：1989-03-01

申请人： John G. Chernega ,  John A. Martens ,  Felix P. Lau ,  Leslie M. Milner

发明人： John G. Chernega ,  John A. Martens ,  Felix P. Lau ,  Leslie M. Milner

IPC分类号： G11B5/82 ,  G11B23/00

CPC分类号： G11B5/825 ,  G11B23/005 ,  Y10S428/90

摘要： Stretched surface recording disk (SSR) 10 comprising an annular support 12 having raised annular ridges 28 and 42 at its inside and outside diameters 22 and 30 with a base portion 24 in between the two ridges, and an annular recording medium film 14 held in radial tension and stretched across the base portion by adhering the film to attachment surfaces 48 and 36 near the inside and outside diameters respectively. The bond between the recording medium film and the support at the inner and outer attachment surfaces is formed by an electron beam cured adhesive such as a mixture of hydantoin hexacrylate and dimethylacrylamide. By manufacturing the stretched surface recording disks with the e-beam process, significantly less time is required to adhere each stretched recording medium to its support, and the quality of the bond between the support and recording medium film is improved. SSR are capable of higher bit density than floppy disks of equivalent surface area and are not as sensitive to contact between the media and a flying magnetic head ("head crashes") as rigid disks.

摘要翻译： 拉伸表面记录盘（SSR）10包括环形支撑件12，环形支撑件12在其内部和外部直径22和30处具有凸起的环形脊28和42，其中基部24位于两个脊之间，并且环形记录介质膜14保持在径向 通过将膜粘附到附近表面48和36附近的内径和外径上，张紧并拉伸穿过基部。 记录介质膜和内外表面附着物之间的结合由电子束固化粘合剂如乙内酰脲六丙烯酸酯和二甲基丙烯酰胺的混合物形成。 通过用电子束工艺制造拉伸的表面记录盘，需要显着更少的时间将每个拉伸的记录介质粘附到其支撑体上，并且提高支撑体和记录介质膜之间的结合质量。 SSR能够比具有等效表面积的软盘具有更高的位密度，并且对于作为刚性盘的介质和飞行磁头（“磁头碰撞”）之间的接触并不敏感。

公开(公告)号：US4835647A

公开(公告)日：1989-05-30

申请号：US69328

申请日：1987-07-02

申请人： John G. Chernega ,  John A. Martens ,  Felix P. Lau ,  Leslie M. Milner

发明人： John G. Chernega ,  John A. Martens ,  Felix P. Lau ,  Leslie M. Milner

IPC分类号： G11B5/82 ,  G11B23/00

CPC分类号： G11B5/825 ,  G11B23/005

摘要： Stretched surface recording disk (SSR) 10 comprising an annular support 12 having raised annular ridges 28 and 42 at its inside and outside diameters 22 and 30 with a base portion 24 in between the two ridges, and an annular recording medium film 14 held in radial tension and stretched across the base portion by adhering the film to attachment surfaces 48 and 36 near the inside and outside diameters respectively. The bond between the recording medium film and the support at the inner and outer attachment surfaces is formed by an electron beam cured adhesive such as a mixture of hydantoin hexacrylate and dimethylacrylamide. By manufacturing the stretched surface recording disks with the e-beam process, significantly less time is required to adhere each stretched recording medium to its suppport, and the quality of the bond between the support and recording medium film is improved. SSR are capable of higher bit density than floppy disks of equivalent surface area and are not as sensitive to contact between the media and a flying magnetic head ("head crashes") as rigid disks.

摘要翻译： 拉伸表面记录盘（SSR）10包括环形支撑件12，环形支撑件12在其内部和外部直径22和30处具有凸起的环形脊28和42，其中基部24位于两个脊之间，并且环形记录介质膜14保持在径向 通过将膜粘附到附近表面48和36附近的内径和外径上，张紧并拉伸穿过基部。 记录介质膜和内外表面附着物之间的结合由电子束固化粘合剂如乙内酰脲六丙烯酸酯和二甲基丙烯酰胺的混合物形成。 通过使用电子束工艺制造拉伸的表面记录盘，需要显着更少的时间来粘附每个延伸的记录介质到其支撑，并且改善了支撑体和记录介质膜之间的结合质量。 SSR能够比具有等效表面积的软盘具有更高的位密度，并且对于作为刚性盘的介质和飞行磁头（“磁头碰撞”）之间的接触并不敏感。

公开(公告)号：US4783370A

公开(公告)日：1988-11-08

申请号：US868134

申请日：1986-05-28

申请人： John G. Chernega ,  John A. Martens ,  Roger A. Olsen ,  Auburn B. Cottinham, deceased

发明人： John G. Chernega ,  John A. Martens ,  Roger A. Olsen ,  Auburn B. Cottinham, deceased

IPC分类号： C08F214/06 ,  C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D133/04 ,  C09D133/08 ,  G11B5/702

CPC分类号： G11B5/7023 ,  Y10S428/90 ,  Y10T428/31504 ,  Y10T428/31609 ,  Y10T428/31935

摘要： Magnetic recording media have been made with a new class of binder resins having the formula ##STR1## wherein the portion of the copolymer having the a subscript comprises 50 to 97 weight percent of the copolymer, the portion of the copolymer having the b subscript comprises 0 to 30 weight percent of the copolymer, the portions of the copolymer having the c and d subscripts combined comprise 0.1 to 20 weight percent of the copolymer, while d can be 0,R.sub.1 is an alkyl group selected from --CH.sub.3 and --(CH.sub.2).sub.nl CH.sub.3 wherein nl=1-10,R.sub.2 is an alkylene group which may be (CH.sub.2).sub.n1 or (CH.sub.2).sub.n2 (CH)(CH.sub.2).sub.n3 CH.sub.3, n2=1-4 and n3=0-4,R.sub.3 may be selected from --H and --CH.sub.3, n5=0 or 1, and X is a linking group which is stable under electron beam irradiation and may be, for example, ##STR2## R.sub.4 =C1-6 alkylene, for example, with the proviso that when d=0, there is at least one additional polymer in the binder.The above resins in which d is greater than 0 are electron beam curable, and recording media can be produced by using such binder resins and curing them by electron beam irradiation.

摘要翻译： 已经用新型的具有下式的粘合剂树脂制备了磁记录介质，其中具有下标的共聚物部分包含50-97％（重量）的共聚物，共聚物的具有b下标的部分包括0 至30重量％的共聚物的共聚物，具有c和d下标的共聚物部分包含0.1至20重量％的共聚物，而d可以为0，R 1为选自-CH 3和 - （CH 2） 其中n1 = 1-10，R2是可以是（CH2）n1或（CH2）n2（CH）（CH2）n3CH3，n2 = 1-4和n3 = 0-4的亚烷基，R3可以选自 -H和-CH 3，n 5 = 0或1，X是在电子束照射下稳定的连接基团，例如可以是例如R 4 = C 1-6亚烷基，条件是当 d = 0，粘合剂中至少有一种另外的聚合物。 其中d大于0的上述树脂是可电子束固化的，并且可以通过使用这种粘合剂树脂制造记录介质并通过电子束照射固化。

公开(公告)号：US4889895A

公开(公告)日：1989-12-26

申请号：US229278

申请日：1988-08-08

申请人： John G. Chernega ,  John A. Martens ,  Roger A. Olsen ,  Auburn B. Cottingham, deceased

发明人： John G. Chernega ,  John A. Martens ,  Roger A. Olsen ,  Auburn B. Cottingham, deceased

IPC分类号： G11B5/702

CPC分类号： G11B5/7023

摘要： Magnetic recording media have been made with a new class of binder resins having the formula ##STR1## wherein the portion of the copolymer having the a subscript comprises 50 to 97 weight percent of the copolymer, the portion of the copolymer having the b subscript comprises 0 to 30 weight percent of the copolymer, the portions of the copolymer having the c and d subscripts combinec comprise, 0.1 to 20 weight percent of the copolymer, while d can be 0,R.sub.1 is an alkyl group selected from --CH.sub.3 and --(CH.sub.2).sub.n1 CH.sub.3 wherein n1=1-10,R.sub.2 is an alkylene group which may be --CH.sub.2).sub.n1 or --CH.sub.2).sub.n2 (CH)(CH.sub.2).sub.n3 CH.sub.3, n2=1-4 and n3=0-4,R.sub.3 may be selected from --H and --CH.sub.3, n5=0 or 1, and X is a linking group which is stable under electron beam irradiation and may be, for example, ##STR2## R.sub.4 =C1-6 alkylene, for example, with the proviso that when d=0, there is at least one additional polymer in the binder.The above resins in which d is greater than 0 are electron beam curable, and recording media can be produced by using such binder resins and curing them by electron beam irradiation.

摘要翻译： 已经用新型的具有下式的粘合剂树脂制备了磁记录介质，其中具有下标的共聚物部分包含50-97％（重量）的共聚物，共聚物的具有b下标的部分包括0 至30重量％的共聚物，共聚物的具有c和d下标组合的部分包含0.1至20重量％的共聚物，而d可以为0，R 1为选自-CH 3的烷基和 - （CH 2 ）n1CH3其中n1 = 1-10，R2是可以是-CH2的亚烷基）n1或-CH2）n2（CH）（CH2）n3CH3，n2 = 1-4和n3 = 0-4，可以选择R3 从-H和-CH 3，n5 = 0或1，X是在电子束照射下是稳定的连接基团，例如可以是例如，R 4 = C 1-6亚烷基，条件是 当d = 0时，粘合剂中至少有一种另外的聚合物。 其中d大于0的上述树脂是可电子束固化的，并且可以通过使用这种粘合剂树脂制造记录介质并通过电子束照射固化。

公开(公告)号：US4923711A

公开(公告)日：1990-05-08

申请号：US420356

申请日：1989-10-12

申请人： John G. Chernega ,  John A. Martens ,  Roger A. Olsen ,  Auburn B. Cottingham, deceased

发明人： John G. Chernega ,  John A. Martens ,  Roger A. Olsen ,  Auburn B. Cottingham, deceased

IPC分类号： G11B5/702

CPC分类号： G11B5/7023

摘要： Magnetic recording media have been made with a new class of binder resins having the formula ##STR1## wherein the portion of the copolymer having the a subscript comprises 50 to 97 weight percent of the copolymer, the portion of the copolymer having the b subscript comprises 0 to 30 weight percent of the copolymer, the portions of the copolymer having the =c and d subscripts combined comprise 0.1 to 20 weight percent of the copolymer, while d can be 0,R.sub.1 is an alkyl group selected from --CH.sub.3 and ##STR2## wherein n1=1-10, R.sub.2 is an alkylene group which may be --CH.sub.2).sub.nl or ##STR3## n2=1-4 and n3=0-4, R.sub.3 may be selected from --H and --CH.sub.3, n5=0 or 1, and X is a linking group which is stable under electron beam irradiation and may be, for example, ##STR4## R.sub.4 =C1-6 alkylene, for example, with the proviso that when d=0, there is at least one additional polymer in the binder.The above resins in which d is greater than 0 are electron beam curable, and recording media can be produced by using such binder resins and curing them by electron beam irradiation.

摘要翻译： 已经用新型的具有下式的粘合剂树脂制备了磁记录介质，其中具有下标的共聚物部分包含50-97％（重量）的共聚物，共聚物的具有b下标的部分包括0 至30重量％的共聚物，共聚物中具有= c和d下标的部分组合占共聚物的0.1-20重量％，而d可以是0，R1是选自-CH3和[IMAGE] 其中n1 = 1-10，R2是可以是-CH2）n1或n2 = 1-4且n3 = 0-4的亚烷基，R3可以选自-H和-CH3，n5 = 0或 1，X是在电子束照射下稳定的连接基团，例如可以是例如R 4 = C 1-6亚烷基，条件是当d = 0时，存在至少一种另外的 聚合物在粘合剂中。 其中d大于0的上述树脂是可电子束固化的，并且可以通过使用这种粘合剂树脂制造记录介质并通过电子束照射固化。

公开(公告)号：US4267238A

公开(公告)日：1981-05-12

申请号：US100699

申请日：1979-12-18

申请人： John G. Chernega

发明人： John G. Chernega

IPC分类号： G11B5/725 ,  G11B5/78 ,  B32B27/28

CPC分类号： G11B5/725 ,  C10M2213/00 ,  C10M2213/04 ,  C10M2213/06 ,  C10M2217/042 ,  C10M2217/043 ,  C10N2240/00 ,  C10N2240/22 ,  C10N2240/30 ,  C10N2240/50 ,  C10N2240/52 ,  C10N2240/54 ,  C10N2240/56 ,  C10N2240/58 ,  C10N2240/60 ,  C10N2240/66 ,  Y10S428/90 ,  Y10T428/31544 ,  Y10T428/31786

摘要： Flexible magnetic recording tape is lubricated by a thin coating of a fluorinated telechelic polyether polymer having at least one polar group such as --CONHCH.sub.2 CH.sub.2 OH, --COOCH.sub.3, --CH.sub.2 OH, and --COCF.sub.3. This is believed to provide for the first time reliably effective lubrication at 40.degree. C. and 80% relative humidity.

摘要翻译： 柔性磁记录带通过具有至少一个极性基团如-CONHCH2CH2OH，-COOCH3，-CH2OH和-COCF3的氟化遥爪聚醚聚合物的薄涂层进行润滑。 这被认为是在40℃和80％相对湿度下首次提供可靠有效的润滑。

公开(公告)号：US5028483A

公开(公告)日：1991-07-02

申请号：US531848

申请日：1990-06-01

申请人： John G. Chernega ,  Verna M. Kubik

发明人： John G. Chernega ,  Verna M. Kubik

IPC分类号： B32B7/02 ,  B32B27/14 ,  C08J7/04 ,  C08K3/22 ,  C08K7/00 ,  C08K7/08 ,  C09D5/23 ,  G11B5/706 ,  G11B5/712 ,  G11B5/714 ,  G11B5/73 ,  G11B5/842

CPC分类号： G11B5/714 ,  G11B5/70642 ,  G11B5/712 ,  Y10S428/90 ,  Y10T428/257 ,  Y10T428/31551

摘要： A magnetic recording medium comprising a nonmagnetizable substrate and a magnetizable layer coated onto the substrate. The magnetizable layer comprises about 83 to 89 percent by weight of acicular, substantialy dendrite-free, iron oxide magnetic pigment particles dispersed in a polymeric binder.

公开(公告)号：US4595640A

公开(公告)日：1986-06-17

申请号：US565415

申请日：1983-12-27

申请人： John G. Chernega

发明人： John G. Chernega

IPC分类号： G11B5/71 ,  G11B5/72

CPC分类号： G11B5/71 ,  Y10S428/90

摘要： An improved lubricant system for magnetic recording media such as helical scan video tapes is disclosed. The resulting improved magnetic recording media comprise the usual flexible or rigid backing and a magnetizable layer on the backing, but the lubricant is comprised of an organic compound selected from the group consisting of isomeric carboxylic acids and isomeric alcohols (e.g. iso-stearic acid and iso-stearyl alcohol). A fatty acid ester may be included in the lubricant.A typical composition utilizes 0.5 parts by weight iso-stearic acid per 100 parts of magnetizable material (e.g., cobalt doped ferric oxide particles) and 1 part by weight of isopropyl palmitate per 100 parts of the magnetizable material. Video tapes lubricated with this new system, have shown improved electromagnetic output (e.g., higher signal-to-noise ratios). In addition, they are able to withstand the stop motion of a helical scan video head better than prior known lubricant systems.

摘要翻译： 公开了用于磁记录介质如螺旋扫描录像带的改进的润滑系统。 所得改进的磁记录介质包括通常的柔性或刚性背衬和背衬上的可磁化层，但润滑剂由选自异构羧酸和异构醇（例如异硬脂酸和异构体）的有机化合物组成 - 硬脂醇）。 脂肪酸酯可以包含在润滑剂中。 典型的组合物每100份可磁化材料每100份可磁化材料（例如钴掺杂的氧化铁颗粒）和1重量份的棕榈酸异丙酯使用0.5重量份的异硬脂酸。 使用这种新系统润滑的录像带已经显示出改进的电磁输出（例如更高的信噪比）。 此外，它们能够比先前已知的润滑剂系统更好地承受螺旋扫描视频头的停止运动。