TWI294445B - Data storage media containing transparent polycarbonate blends - Google Patents

Description

1294445 A7 B7 Ministry of Economic Affairs Intellectual Property Office Staff Consumer Cooperatives Printed V. Inventions (彳) Before and after the relevant application, the US Provisional Application No. 6 0 2 0, filed on May 31, 2000 8 1 3 9 priority. BACKGROUND OF THE INVENTION The present invention relates to a transparent polymer miscible blend suitable for use in optical articles. The invention further relates to an optical article, and a method of making an optical article from the transparent blend. In addition to being an optical article, the blends of the present invention can be used to produce transparent articles of manufacture having good properties. These properties include food chemical resistance and melt processability. These blends are particularly useful in the manufacture of transparent molded articles, fibers, films and sheets. Polycarbonate and other polymeric materials are used in optical data storage media such as compact disks. In the optical data storage media, it is important that the polycarbonate resin has good performance characteristics such as transparency, low hydrophilicity, good processability, good heat resistance, and low birefringence. High density optical data storage mediators are particularly undesirable for high birefringence. Improvements in optical data storage media, including increased data storage density, are highly anticipated, and predictions for such improvements are required to improve well-recognized novel computer technologies such as read-only, single-write, re-writeable, digitally-used, And magnetic field-optical (MO) discs. In the case of C D - R〇Μ technology, the data to be read is directly engraved in a moldable, transparent plastic such as bisphenol A (B P A ) polycarbonate. This data is stored in the form of shallow pits carved into the polymer surface. The surface splash

This paper scale applies to China National Standard (CNS) A4 specification (210X297 mm) -4 - 1294445 A7 B7 Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing 5, invention description (2) plated with reflective metal film, and The position and length of the pothole data are read using a focused low-energy (5 mW) laser beam in an optical open multi-mode. The principle of single-write and multi-read (W 0 R Μ ) drive uses a focused laser beam (20 - 40 mW) to create a permanent mark on the film on the disc. The data is read in the form of changes in the optical properties of the optical disc, such as reflectivity or absorbance. Although the CD-ROM and WORM formats have been successfully developed and are well suited for specific applications, the computer industry is still focused on erasable mediators (EODs) for optical storage. There are two types of phase-changes: phase change (PC) ) type and magnetic field - optical (MO) type. In the VIO storage, the data bits are stored in the form of ~1 micron diameter magnetic functional regions, and their magnetization is either high or low. The data can be read by detecting the rotation of the plane polarized light from the surface of the magnetic film. This rotation, called the Magnetic-Optic Kerr Effect (MOKE), is generally less than 0 · 5 degrees.材料 0 The material used for storage is usually an amorphous alloy of rare earth and transition metal. Amorphous materials have clear advantages in Μ 0 storage, so there is no 'grain noise 〃. In multi-type films, pseudo-generated changes in the plane of polarization of reflected light due to disorder of grain orientation . The bit system is written by heating to a point higher than the Curie point T c and cooling in the presence of a magnetic field. This method is called thermomagnetic writing. Among the phase change materials, the data are stored in regions of different phases, generally amorphous and crystalline. These films are usually alloy or bismuth compounds, which can be quenched by melting and rapid cooling (please read the notes on the back and fill in the pages). Loading and setting the paper size is applicable to the Chinese National Standard (CNS) A4 specification. (210X297 mm) -5- 1294445 A7 B7 Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing 5, invention description (3) become amorphous. The film is first crystallized by heating to a crystallization temperature in a majority of such materials, the crystallization temperature being close to the glass transition temperature. When the film is heated using a short and high energy poly-J laser pulse, the film can be Melt and quench into an amorphous state. Amorphized dot-field representation - digit \\ 1 // or data bit 〇 This data is scanned by the same laser set at lower energy and detected for reflectivity, while read 〇 at W 〇R Μ and In the case of ED 〇 technology, the 5 recording layer is isolated from the environment by a transparent non-interfering layer. BB White \\ Read-through // Optical materials for storage applications require superior physical properties such as moldability and ductility. The toughness suitable for general use is exposed to high heat or high humidity. j or a single type or a combination of several kinds of data. When the storage device is modified or attached to the storage device, the material passes through the laser light. The interference of the channel of the mediator is minimized. When the data storage mediator in the optical data storage media is increased to match the newer technologies such as digital variable disc (DVD), it can be recorded and written. Digital Compact Disc (DVD-R and DVD-RW) High-density digital compact disc (Η D — DVD ), digital photographic recorder (DVR) and high-density data discs for short-term or long-term data files The design requirements for the transparent plastic component of the optical data storage device have become more stringent. In many of these applications, polycarbonate materials such as BPA polycarbonate materials are not suitable for current versus materials exhibiting lower birefringence and for shorter VV read and write wavelengths in the future. It is the goal of tJ in the field of optical data storage devices. Low birefringence itself cannot be used for optical data storage media. This paper scale is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) -6 - 1294445 A7 B7 All the design requirements of the Ministry of Economic Affairs, Intellectual Property Office, Staff and Consumers Co., Ltd., 5, invention description (4); high transparency, heat resistance, low suction water, ductility, high purity and low non-uniformity Or particles. It has been found that materials currently in use lack one or more of these characteristics and require novel materials to achieve higher mediator density in optical data storage mediators. In addition, novel materials with improved optical properties are contemplated and have general utility for making other optical objects such as lenses, gratings, beam splitters, and the like. In applications requiring higher storage densities, the properties of low birefringence and low water absorption in polymeric materials from which optical articles are made become more stringent. In order to achieve a higher data storage density, low birefringence is required to minimize interference with the laser beam as it passes through optical objects such as optical discs. Another rigorous property required for high data storage density applications is the flatness of the disc. The flatness of the disc is related to the flatness of the polycarbonate substrate after the injection molding process and the dimensional stability of the substrate when exposed to high humidity. It is known that excessive hygroscopicity causes the disc to be skewed, which in turn leads to a decrease in reliability. Since the optical disk system includes a polymeric material, the flatness of the optical disk depends on the low water solubility and the low rate at which water diffuses into the polymeric material. In addition, the polymer should be easy to process to produce a high quality disc via injection molding. There is a need for a composition having good optical properties and good processability, which is suitable for use in high density optical recording media. Polycarbonate produced by copolymerization of the aforementioned aromatic dihydroxy compound such as BPA with other monomers such as 6,6-dihydroxy-3,3,3^-tetramethylspirohydroindole (SBI) can be produced. Acceptable birefringence; however, the glass transition temperature (Tg) melt viscosity is often too high, resulting in poor processing characteristics. As a result, the resulting molded article has low impact resistance and low pit duplication. This paper scale applies to China National Standard (CNS) A4 specification (210X297 mm) 1294445 Α7 Β7 Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing 5, invention description (5) In addition, the polycarbonate water absorption is high-density application Unacceptable. Disclosure of the Invention The present invention solves the aforementioned problems and proposes a composition for use in a storage medium having unexpectedly advantageous properties. These and other objects of the present invention will become apparent from the following disclosure and claims. One aspect of the invention is the blending of related polymers for the production of a clear, miscible blend composition. In another aspect, Applicants have unexpectedly discovered that the clear miscible blends of the present invention have properties suitable for use in optical articles, particularly in optical data storage mediators. DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polymeric transparent blend suitable for use in optical articles which contains residues of B C C and its derivatives and which are particularly useful in high density optical data storage mediators. The polymer additionally contains residues of other polymers such as α-methyl polystyrene and polystyrene derivatives, bisphenols such as bisphenol A; cycloaliphatic polyester resins such as p CC d and derivatives thereof or parts thereof combination. DETAILED DESCRIPTION OF THE INVENTION The invention will be more readily apparent from the following detailed description of the preferred embodiments of the invention. Prior to the disclosure of the compositions and methods of the present invention, it is known that the invention is not limited to a particular synthetic method or to a particular formulation, which may of course vary. The vocabulary used in the present invention is also understood to be illustrative only and not limiting. In the specification of the present invention and the scope of the following patent application, reference is made to the reading of the back

The paper size is applicable to the Chinese national standard (CNS>Α4 specification (210Χ297 mm) -8 - 1294445 Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing A7 _B7 V. Invention description (6) Items with the following meanings Form, 〃, '" 〃 、 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Achieving close polymer-polymer interactions. The term "transparent" is defined in the present invention as having no turbidity, ambiguity and turbidity when visually observed. Transparency is by using Gardner colorimetric Measured by measurement of transmittance, ambiguity, and yellowness index (YI). > Depending on the situation & or > Depending on the circumstances, the conditions or conditions described subsequently may or may not occur, and the description includes The occurrence or non-occurrence of this condition or condition. v' BCC is defined in the present invention as 1,1 bis(4-hydroxy-3-methylphenyl)cyclohexane. ''B i sAP 〃 Defined as 1, 1 in the present invention Bis(4-hydroxyphenyl)methylphenylmethane. ''AMPS® is defined in the present invention as α-methyl polystyrene 〇'' ps 〃 is defined in the present invention as polystyrene. '' PCCD In the present invention, it is defined as poly(cyclohexane-1,4-dicarboxylic acid cyclohexane-1,4-dimethylene ester). As used herein, 'polycarbonate 〃 or , The lanthanum series such as polycarbonate includes copolycarbonate, homopolycarbonate and (co)polyestercarbonate. ^ C g lanthanide is the stress optical coefficient of the polymer material in the glass state, by Brewsters (1 〇 - 13cm 2 / Dyne) This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) -9 - 1294445 A7 B7 Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing 5, invention description (7) Measurement IBR Tether is the birefringence of a molded object in a plane, measured in nanometers. ~VBR Tether is the vertical birefringence of a molded object measured in nanometers per millimeter (nm/mm). The ''optical object'' used in the present invention includes optical discs and optical materials. Media storage media, such as optical discs (audio CD or CD-ROM), digital compact discs - also known as DVD (R〇M, RAM, writable), recordable digital compact discs (DVD - R), digital photography (DVR), magnetic field optical (MO) optical discs, etc.; optical lenses, such as contact lenses, spectacle lenses, telescope lenses, and enamel; optical fibers; data recording mediator; data transmission mediator; A data storage medium, a compact disc for a camera, an optical disc for a still camera, and the like, and a substrate on which an optical recording material is applied. In addition to being a material for the preparation of optical articles, the blends of the present invention can be used as a raw material for films or sheets. The ''optical data storage media 〃' of the present invention can be of any type, such as compact discs (CDs), digital compact discs (〇 〇 3), 0 and 0-RWs, HD-DVDs, DVD-RS, DVRs and The magnetic field optical disc (MO) is the best. The device can also include a recordable and writable optical data storage mediator. In one embodiment of the apparatus, the reflective metal layer is directly attached to a substrate comprising the transparent miscible blend, wherein the metal layer comprises aluminum, gold, silver or alloys thereof. Unless otherwise stated, the & mole percent of the polycarbonate composition in this issue is the weight of the polycarbonate at a percentage of 10 〇mol (please read the notes on the back before refilling the page)

This paper scale applies to the Chinese National Standard (CNS) A4 specification (.210X297 mm) -10 1294445 Α7 Β7 V. Invention description (8) Current unit. For example, a polymer comprising 90 mole percent B C C means that the 95% molar percentage of the reproduction unit is a residue derived from B C C biphenol or its corresponding derivative. Corresponding derivatives include, but are not limited to, the corresponding oligomer of the biphenol; the corresponding ester of the biphenol and its oligomer; and the corresponding chloroformate of the biphenol and its oligomer. In the present invention, the ''residue oxime' and 'structural unit lanthanide used in the polymer component are synonymous. In the context of the present invention, the disclosure of such publications is incorporated herein by reference in its entirety to the extent of the disclosure of the disclosure. One aspect of the present invention relates to a transparent miscible blending composition comprising two polymers, wherein the polymer is selected from the group consisting of A, B, and C. Group, where (A) is a polycarbonate, including the structural unit corresponding to structure (1) (please read the precautions on the back and refill.

Ordering Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs

〇II 〇—c-- I(I) wherein R i and R 2 are each C i -C 6 alkyl; X is C Η 2 ; This paper scale is applicable to China National Standard (CNS) Α4 specification (210Χ297 public) PCT - -11 - 1294445 A7 B7___ V. Description of the invention (9) m is an integer from 4 to 7; η is an integer from 1 to 4; and the lanthanum is an integer from 1 to 4, with the constraint being At least one of R 1 and R 2 is at the 3 or 3 position; (Β) includes a polymer corresponding to the structural unit of the structure (Π)

Wherein r3 is a Ci-Ce alkyl group, a hydrogen group, a cyano group or a methoxy group; and (C) a polymer comprising a structural unit corresponding to the structure (melon) (please read the back sheet for the precautions and fill in the page) Ordered by the Ministry of Economic Affairs, Intellectual Property Bureau, Staff Consumer Cooperatives (FU)

Wherein R 4 , R 5 and R 6 are each a C i — C 6 alkyl group. Another aspect of the invention relates to a transparent miscible blending composition comprising polymers A and D, wherein (A) is a polycarbonate, including a structure corresponding to (I) Structure This paper scale applies to the national standard (CNS) A4 specification (210X297 mm) ' ' -12- 1294445 A7 B7 V. Invention description (10) Unit

Ministry of Economic Affairs, Intellectual Property Office, Staff Consumer Cooperative, Printed a J (I) where R i and R 2 are C i - C 6 yards; X is C Η 2; m is an integer from 4 to 7; Is an integer from 1 to 4; and the lanthanide is an integer from 1 to 4, with the proviso that at least one of R 1 and R 2 is at the 3 or 3 ' position; and (D) includes the corresponding structure The cycloaliphatic polyester resin of the structural unit of (IV) 0 〇II RJ_- --r7—〇—c—-R8 u _ (IV) wherein R 7 is a diol having 6 to 20 carbon atoms Residues of aryl, alkane or naphthenic, and R8 is a product containing 6 to 20 carbon atoms. Applicable to China National Standard (CNS) A4 specification (210X297 mm) C. Please read the notes on the back. Fill in)

, 1T -13 - 1294445 Α7 Β7 V. Description of the invention (彳彳) The decarboxylation residue of an aryl, aliphatic or naphthenic acid of a diacid, with the proviso that at least one of R 7 or R 8 is Cycloaliphatic. In another aspect, the invention relates to a transparent miscible blending composition comprising polymers A, B and C, wherein (A) is a polycarbonate, including Structural unit of structure (I)

〇II (Please read the notes on the back and fill in the {^ page)

Ministry of Economic Affairs, Intellectual Property Bureau, Staff Consumer Cooperative, Printed J (I) where R χ and R 2 are C i - C 6 alkyl; X is C Η 2 ; m is an integer from 4 to 7; An integer from 1 to 4; and the lanthanide is an integer from 1 to 4, with the constraint that at least one of R ^ and R 2 is at the 3 or 3 ' position; (B) includes the structure corresponding to The polymer of the structural unit is applicable to the Chinese National Standard (CNS) A4 specification (21 OX297 mm) -14 - 1294445 A7 ____ B7 V. Description of invention (12)

Wherein R3 is a Ci-Ce alkyl group, a hydrogen, a cyano group or a methyl group; and (c) a polymer comprising a structural unit corresponding to the structure (m) (R4)

(Please read the notes on the back and fill in the {_page) |^丨

1T wherein R4, R5 and R6 are each a Ci- c6 alkyl group. In another aspect, the present invention relates to a transparent transparent glutinous composition comprising a polymer A, B and E,

This paper scale applies to Chinese National Standard (CNS) A4 specification (210X297 mm) -15- 1294445 A7 B7 V. Inventive Note (13) where R i and R 2 are each C i - C 6 alkyl; X is C Η 2 ; m is an integer from 4 to 7; .η is an integer from 1 to 4; and the lanthanide is an integer from 1 to 4, with the constraint being at least one of R 1 and R 2 Located at 3 or position; (Β) including the polymer corresponding to the structural unit of structure (Π) Please read the back ft

page

(Π) wherein R3 is Cl-c6 alkyl, hydrogen, cyano or methoxy; and (E) comprises a structural unit corresponding to structure (V). system

Wherein R9 is a Cl—C 6 building group, hydrogen, cyano or methoxy. In another aspect, the present invention relates to a transparent miscible blending composition. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210×297 mm) -16-1294445 A7 B7 5. Inventive Note (14), The transparent miscible blending composition comprises polymers B, C and E, wherein (B) comprises a polymer corresponding to the structural unit of the structure (Π)

Wherein R3 is a C 1 -C6 building group, a gas, a cleavage group or a methoxy group; (c) a polymer comprising a structural unit corresponding to the structure (m) (R4)

Ministry of Economic Affairs, Intellectual Property Bureau, employee consumption cooperative, printing

(R5) wherein R 4 , R 5 and R 6 are each a C i -C 6 alkyl group and (E ) comprises a polymer h2 (V) corresponding to the structural unit of the structure (V). This paper size is applicable to the Chinese national standard. (CNS) A4 size (210X297 mm) -17- 1294445 A7 B7 V. Inventive Note (15) wherein R9 is C 1 -Ce, hydrogen, cyano or methoxy. Transparent, miscible blends of polymers are quite rare. The clear miscible blend is not translucent or opaque. The differential scanning calori test only detects a single glass transition temperature (Tg) of a miscible blend comprising two or more components. In addition, the contrast ratio indicating the immiscible phase was not detected by the scanning electron microscope. The birefringence in an article molded from a polymeric material is related to the orientation and deformation of the constituent polymer chains. Birefringence has several sources, including the structure and physical properties of the polymeric material, the degree of molecular orientation in the polymeric material, and the thermal stress in the processed polymeric material. For example, the birefringent portion of a molded optical article is determined by the molecular structure of the polymer composition and the processing conditions that may result in thermal stress and orientation of the polymer chain, such as the force applied in the mold filling. Printed by the Intellectual Property Office of the Ministry of Economic Affairs, the consumer consortium. Therefore, the optical birefringence found is determined by the molecular structure - a specific birefringence - and the processing conditions that may cause thermal stress and orientation of the polymer chain. In particular, the birefringence found is generally a function of the specific birefringence and birefringence derived from molding an article such as a compact disc. The disc birefringence found is generally measured using a measurement called "in-plane birefringence" or I B R , as detailed below. The IBR of the molded optical disc is defined as: ΙΒΙΗινη^ΔινΙ (3) where nr and η Θ represent the refractive index of the r and 0 cylinder axes of the optical disc, and nr is the refractive index obtained by the beam polarized in the radial direction; 116 is the The standard of light paper is applicable to China National Standard (CNS) A4 specification (210X297 mm) -18- 1294445 A7 B7 Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing 5, invention description (16) disc plane into azimuth polarized light Refractive index; and d is the thickness of the disc. The I B R is around the defocus limit, and the reduction of I B R makes it impossible to soothe the problem of mechanical correction. I B R - formally referred to as delay - is the nature of the organized disc, with nanometer units. Two useful specifications for the suitability of a molded optical article such as a material for molding optical data storage discs are the stress optical coefficient (C m ) of the material in the melt state and its stress optics in the glass state. Coefficient (C g ). The relationship between C m, C g and birefringence can be expressed as follows: An-CmxAam(l) Δη = 〇8χΔσ8 (2) where Δ η is the measured birefringence, Δ σ m and Δ σ g are The stress applied in the melt and glass state. The stress optical coefficients c m and C g are measures for the ease of birefringence of the material during orientation of the mold due to orientation and deformation and stress generated during cooling of the molded article. The stress optical coefficient <:m&Cg can be used as a general material screening tool, and can also be used to predict the vertical birefringence (V B R ) of a molded article - a critical amount of a particular material successfully used in a molded optical article. For molded optical discs, VBR is defined as: VBR = (n, - nj = Δη^ (3) where nr and η ζ represent the refractive index of the r and Ζ cylindrical axes of the disc, and nr is radial The refractive index of the polarized beam, and η ζ is the refractive index of the light that is perpendicular to the plane of the optical disc. The VBR is around the defocusing boundary (please read the back of the note before filling this page). Standard (CNS) A4 size (210X297 mm) -19- 1294445 A7 B7 V. Description of invention (17) Limitation, the reduction of VBR makes it impossible to relieve the problem of mechanical correction.. Improve the improved material used in optical objects. C m and C κ are particularly useful because they require a minimum amount of material and are relatively insensitive to uncontrolled enthalpy or sample preparation methods. VBR measurements need to be explicitly reduced (/quantity of material, and Molding conditions are dependent. In general, materials with low C m and C g 发现 are found in optical data storage applications, exhibiting improved properties of materials with higher c,,, WC g値. Therefore, the development of improved optical quality % force, widely used C m and C g Measure the potential candidate for this application and compare it to the previously invented material. The blending method provides specific advantages, unlike the copolymerization method. Advantages of the blending method include the production of the composition, which is expensive Or can not be achieved by copolymerization. The blended composition additionally proposes a polycarbonate blend having desirable optical properties and a suitable glass transition temperature (T g ) suitable for use in optical articles. Suitable glass transition temperatures are required. Providing appropriate processability, such as ideal molding characteristics. The Ministry of Economic Affairs, Intellectual Property Office, Staff Consumer Cooperative Printing Applicant has found that the transparent miscible polymer blend defined by the present invention is also suitable for high data storage density optical media. In particular, the blend of the present invention has good transparency, low water absorption, good processability, good thermal stability, and low birefringence. In another aspect, the present invention relates to a data storage layer and adjacent ones. a transparent top-level data storage medium, wherein the data storage layer can be incident on the transparent top layer before being incident on the data layer The data storage layer of the energy field. In detail, this aspect of the invention relates to a data storage paper size applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -20-1294445 A7 B7 V. Invention Description ( 18) ~ a mediator, including a thin layer of a defined miscible transparent blend composition of about 1000 microns to about 0. 6 mm - a transparent top layer. As described above, a specific example of a data storage mediator It is a DVD. The DVD generally has two substrates, each having a radius of about 120 mm and a thickness of about 6 mm. These substrates are bonded to each other to produce a double-sided optical mediator. A specific example of a data storage medium is a DVR, which typically has a polycarbonate substrate (data layer) having a thickness of about 1 mm, and a top layer having a thickness of about 1 μm, and the two layers are made of an adhesive material. Bonding. As discussed above, the transparent blend composition has properties suitable for optical media, especially for optical data storage applications. The clear miscible blend of the present invention has a glass transition temperature in the range of from about 10 ° C to about 18 ° C, more preferably from about 130 ° C to about 150 ° C. The water-absorptive property of the transparent miscible blending composition is preferably at least less than about 0.33%, more preferably less than about 0.2% by weight. The I BR of the optical disc molded from the clear miscible blend composition is from about 1 〇〇 nanometer to about 1 〇〇 nanometer, preferably from about 750 nm to about 50 nm, about one. More preferably from 40 nm to about 40 nm. Ministry of Economic Affairs, Intellectual Property Office, Staff Consumer Cooperative, printed on a transparent miscible blending composition comprising two polymers, the first polymer and the second polymer using gel permeation chromatography versus polystyrene The measured weight average molecular weight (M w ) is preferably in the range of about 1 〇, 〇〇〇 to about 10 0, 〇〇〇 per 旲 (g/m), and is about 10,0 0 0 to about 50,0 0 0 g/mole is more preferably in the range of from about 1,2,0 0 to about 40,0 gram/mole. A transparent miscible blending composition comprising two polymers to have the paper size applicable to the Chinese National Standard (CNS) Α4 specification (210Χ297 mm) - 21 - 1294445 Α7 Β7 5. Inventive Note (19) At least about 8 5 percent transmittance is preferred, at least about 9 〇 is preferred. For a transparent miscible blend of three polymers, the first polymer, the second polymer, and the third polymerization The weight average molecular weight (M w ) measured by gel permeation chromatography relative to polystyrene is preferably in the range of from about 10,000 to about 100, gram per mole (grams per mole). Between about 10,0 0 〇 and about 5 0,0 0 0 g/mole is better, between about .1 2 , 0 0 0 to about 40, in the range of gram/mole good. The transparent miscible blend composition comprising the three polymers preferably has a transmittance of at least about 85 percent, more preferably at least about 90 percent. The composition of a particular blend can vary within a particular range to provide a suitable linear profile. The blend is miscible throughout the overall composition range. In the case of a blended composition comprising two polymers, the percentage of the polymer is from about 1 to about 99 weight percent of the first polymer portion, and the second polymer is from about 1 to about 99 weight percent, The total weight percentage of the first and second components is preferably equal to about 1000 weight percent. The Ministry of Economic Affairs Intellectual Property Office employee consumption cooperative prints a specific example comprising a blend of two polymers, including polymer A as the first component, and one of polymer B or polymer D as the first A component, component A, is a major component, and comprises from about 1 to about 99 percent by weight of the blend, preferably from about 10 to about 99 percent by weight of the complex. More preferably from about 30 to about 99 weight percent of the blend, more preferably from about 60 to about 99 weight percent of the blend. In another embodiment, the component polymer A occupies about 9 〇 of the blend. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 ϋ ' • 22-1294445 A7 B7 5. Invention Description (20) Up to about 99% by weight. The second component, one of polymer b or polymer D, comprises from about 1 to about 4% by weight of the blend, and from about 5 to about 30 of the blend. Preferably, the weight percentage is from about 1 Torr to about 30% by weight of the blend, wherein the total weight percentage of the first and second components is preferably equal to about 1 〇〇 by weight. In a specific example of the blend of polymers, the polymer C is used as the first component and the polymer B is used as the second component, and the component polymer C is the main component, which occupies the blend. Preferably, the compound has a percentage of from about 1 to about 99 weight percent, preferably from about 10 to about 99 weight percent of the mixture, more preferably from about 30 to about 99 weight percent of the blend, of the blend. More preferably from about 60% by weight to about 99% by weight. In another embodiment, the polymer occupies the blend. From about 90 to about 99. The second component of Polymer B is from about 1 to about 40 weight percent of the blend, and from about 5 to about 30 weight percent of the blend. Preferably, the plutonium is preferably from about 10 to about 30% by weight. The Ministry of Economic Intelligence's Intellectual Property Office employee consumption cooperative prints a concrete example comprising a blend of two polymers, including polymer A as the first The component and the polymer C are used as the second component, and any of the components may be the main component. In a specific example, it is found that the polymer A and the polymer B may be in the same ratio. The particular composition can be adjusted by a number of factors, including the end use of the blend, and the desired properties of the blend. The composition of the blend is adjusted depending on the proportion of the component. For example, the composition of the blend is more More, it helps to obtain low water absorption and good birefringence. Representative units with structure (I) include but are not limited to 1, 1 This paper scale applies to China National Standard (CNS) A4 specification (210X297 mm) ~一_ -23- 1294445 A7 _ _ _B7__ V. Description of invention (21 a pair of (4-hydroxy-3-methylphenyl)cyclohexane (BCC), ι,1-bis(4-hydroxy-3-methylphenyl)cyclopentane, 1, 1 - bis (4) Residue of -hydroxy-3-methylphenyl)cycloheptane, and mixtures thereof. The residue of BCC is the most preferred structural unit (I). In one embodiment of the invention, the blend is Containing a BCC residue from about 9 〇 to about 100 mole percent, structure (VI). BCC can be readily synthesized from cyclohexanone and o-cresol.

Printed by the Intellectual Property Office of the Ministry of Economic Affairs, the Consumers' Cooperative of Polycarbonate, which contains 100% of the structural units derived from B C C in the present invention is referred to as > B C C-polycarbonate. In the present invention, it is important that the 3 or 3 > position of the structural unit having the structure (I) is substituted by at least one of R 1 or R 2 . Preferably, η and p are equal to one, and R: and R 2 are present individually in the 3 and 3' positions. Preferably, Ri and R2 are Ci-Ce alkyl groups, Ci-Cs alkyl groups are preferred, and CH3 is particularly preferred. It is of great interest to blend polycarbonate and polystyrene in the final stage. It is desirable to reduce the water absorption of the polycarbonate, increase the modulus, and lower the optical coefficient of stress by blending in polystyrene. However, B p A ^ paper scale applies Chinese National Standard (CNS) A4 specification (210X297 mm) -24 - 1294445 Ministry of Economic Affairs Intellectual Property Bureau Staff Consumer Cooperative Print A7 _ B7 _ V. Invention Description (22 ) Polycarbonate And polystyrene is not miscible. Therefore, it has been unexpectedly found that the polymer having the structure (I) can be miscible with the polymer having the structure (Π), and the resulting blend is suitable for use in optical articles, especially optical data storage media. A representative unit of the structure (Π) is α-methyl polystyrene, wherein the benzene ring may be substituted or unsubstituted. In one embodiment, the second polymer of the blend comprises a residue of about 1 mole percent alpha-methacrylic polystyrene. The α-methyl polystyrene can be obtained by radical, anionic or cationic polymerization of α-methylstyrene as described in the literature. A representative unit of the structure (m) is a residue of B i s Α ρ, wherein the benzene ring may be substituted or unsubstituted. In one embodiment, the second polymer of the blend comprises a residue of B i S AP of about 1 〇 mole percent. B i s A P can be obtained by acid-catalyzed condensation of acetophenone with phenol. The cycloaliphatic polyester resin comprises a polyester having a recurring unit of structure (IV), 0 0II II -r7-〇-C-r8-c--LJ (IV) wherein R 7 or R 8 is contained a group of a cycloalkyl group. The polyester is a condensation product, wherein the R 7 system is contained in the range of 6 to the paper size applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -25-1294445 A7 ___ B7 __ _ V. Invention Description (23) a residue of an aryl group, an alkane or a cycloalkane of a diol of 20 carbon atoms or a chemical equivalent thereof, and R8 is an aryl group derived from a diacid having 6 to 20 carbon atoms or a chemical equivalent thereof, An aliphatic or cycloalkane-derived decarboxylated residue, which is limited to at least one of R 7 or R 8 . is a cycloaliphatic group. Preferably, the polyester of the invention has both R 7 and R 8 cycloaliphatic groups. The cycloaliphatic polyester of the present invention is a condensation product of an aliphatic diacid or a chemical equivalent with an aliphatic diol or a chemical equivalent. The cycloaliphatic polyester of the present invention is formed from a mixture of an aliphatic diacid and an aliphatic diol, but is required to contain at least 50 moles of a cyclic diacid and/or a cyclic diol component, and the remainder - If present - linear aliphatic diacids and / or diols. The cyclic component imparts sufficient rigidity to the polyester to form a clear blend due to its preferred interaction with the polycarbonate resin. The polyester resin is generally obtained by condensing or transesterifying a diol or a diol equivalent component with a diacid or diacid chemical equivalent component. Preferably, R 7 and R 8 are each independently selected from the group consisting of cycloalkyl groups of the following formula: (Please read the notes on the back and then on page) Printed by the Ministry of Economic Affairs, Intellectual Property Office, Staff Consumer Cooperative 0,0

One CH]- ~ H2G

CH2—H2〇~ H2C Ο CH2 - CHr

This paper scale applies to the Chinese National Standard (CNS) A4 specification (2IOX297 DON) -26 1294445 A7 B7 V. Description of invention (24)

The Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printed OOOO-CO», · The preferred cycloaliphatic group R 8 is derived from 1,4-cyclohexyl diacid, and the best system is more than 70% molar. Structure form. Preferably, the cycloaliphatic group R 7 is derived from a 1,4-cyclohexyl primary diol such as 1,4-cyclohexyl-methanol, and the preferred system is in the trans isomer form above the 7 〇 molar percentage. Other diols which can be used in the preparation of the polyester resin of the present invention have a linear, branched or cycloaliphatic alkanediol and may contain from 2 to 12 carbon atoms. Examples of such diols include, but are not limited to, ethylene glycol, propylene glycol, i.e., 1,2- and 1,3-propanediol; 2,2-dimethyl-1,3-propanediol; 2-ethyl, 2-methyl 1,1,3-propanediol; 1,3, and 1,5-pentanediol; dipropylene glycol; 2-methyl-1,3-pentanediol; 1,6-hexanediol; dimethanol-decahydronaphthalene, Dimethanol dicyclooctane; 1,4-cyclohexanedimethanol, especially its cis- and trans-isomer; triethylene glycol; 1,10-decanediol; and any of the foregoing a mixture of people. It is preferred to use a cycloaliphatic diol or a chemical equivalent thereof, especially 1,4-cyclohexanedimethanol or a chemical equivalent thereof as the diol component. The chemical equivalent of the diol includes esters such as dialkyl esters, diaryl esters and the like. (Please read the notes on the back and fill in.

This paper scale is applicable to China National Standard (CNS) A4 specification (21〇X297 mm) -27- 1294445 A7 B7 V. Invention description (25) (Please read the note on the back and then ^page) It can be used to prepare the grease of the invention. The diacid of the family polyester resin is preferably a cycloaliphatic diacid. A carboxylic acid having two carboxyl groups each bonded to a saturated carbon is included. Preferred diacids are cyclic or bicyclic aliphatic diacids such as decahydronaphthalene dicarboxylic acid, norbornene dicarboxylic acid, dicyclooctane dicarboxylic acid, 1,4-cyclohexanedicarboxylic acid or chemical equivalent Preferably, the system is trans-1,4-cyclohexanedicarboxylic acid or a chemical equivalent. Linear dicarboxylic acids such as adipic acid, sebacic acid, dicarboxydodecanoic acid, and succinic acid can also be used. Cyclohexanedicarboxylic acid and its equivalents can be used, for example, by a cyclic aromatic diacid and a corresponding derivative such as isophthalic acid, terephthalic acid or naphthalene dicarboxylic acid in a suitable solvent such as water or acetic acid. A suitable catalyst such as rhodium supported on a support such as carbon or aluminum is prepared by hydrogenation. Reference is made to Fdefelder et al., Journal of Organic Chemistry, 31, 3438 (1966); U.S. Patent Nos. 2,675,390 and 4,754,064. It can also be prepared using an inert liquid medium in which the phthalic acid is at least soluble under the reaction conditions and a palladium or rhodium catalyst on carbon or cerium oxide is used. Reference is made to U.S. Patent Nos. 2,888,484 and 3,444,237. Printed by the Ministry of Economic Affairs, Intellectual Property Office, Staff Consumer Cooperatives, in hydrogenation, two isomers are obtained, in which the carboxylic acid group is located in the cis- or trans-position. The cis- and trans-isomers may be separated by crystallization using or without a solvent such as n-heptane or by distillation. The cis-isomer is relatively easily blended; however, the trans-isomer is preferred over the local melting point and crystallization. Mixtures of the cis- and trans-isomers can also be used. When using a mixture of isomers or more than one diacid or diol, the paper can be applied to the Chinese National Standard (CNS) A4 specification (210 X 297 dongdong) -28- 1294445 A7 _ B7 ______ V. Description of the invention (26) A copolyester or a mixture of two polyesters is used as the cycloaliphatic polyester resin of the present invention. The chemical equivalents of such diacids include esters, terephthalyl esters such as dialkyl esters, diaryl esters, anhydrides, salts, mercapto chloride, mercapto bromide and the like. Preferably, the chemical equivalent comprises a dialkyl ester of a cycloaliphatic diacid, and the most preferred chemical equivalent comprises a dimethyl ester of the acid, especially dimethyl 1,4-cyclohexane dicarboxylate. . Preferably, the cycloaliphatic polyester is poly(.cyclohexane-1,4-dicarboxylic acid cyclohexyl-1,4-tetramethylene ester), also known as poly(1,4-cyclohexane- Dimethanol-1,4-dicarboxylate) (PCCD), which has a recurring unit of the formula:

According to the above formula, the PMS is based on the above formula. In the case of PCCD, R is derived from 1,4-cyclohexanedimethanol; and R 1 is derived from cyclohexanedicarboxylate or its chemical equivalent. a cyclohexane ring derived from the substance. Preferably, P C C D has a cis/trans formula. The polyester polymerization is usually carried out in a melt in the presence of a suitable amount of a suitable catalyst such as tetrakis(2-ethylhexyl) titanate, typically from about 50 parts per million to about one million parts by weight of the final product. Divided into 200% titanium. Preferred aliphatic polyesters for use in the transparent molding compositions of the present invention have a glass transition temperature (Tg.) above about 50 °C, more preferably above about 80 °C, above about 1000. °C is better. The metric scale applies to the Chinese National Standard (CNS) A4 specification (210X297 mm 1 '~~ -29- 1294445 A7 B7 Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing 5, invention description (27) The above-mentioned polyester is also expected A unit derived from a polymerized aliphatic acid and/or a polymeric aliphatic polyol having from about 1 to about 50 weight percent to form a copolyester. The aliphatic polyol includes a diol such as poly(ethylene glycol) or poly (Butanediol). The present invention includes a specific example of blending three polymers to produce a transparent miscible blend, the first polymer (B) being comprised of structural units corresponding to the structure (Π) The second and third polymers are selected from the group consisting of A, C and E, wherein (A) is a polymer comprising a structural unit corresponding to structure (I), and (C) is included a polymer corresponding to the structural unit of the structure (ΙΠ), and (E) is a polymer including a structural unit corresponding to the structure (V). The present invention comprises a transparent miscible blend of the polymers B, A and C. Specific examples of the material comprise from about 1 to about 50 weight percent of the first poly And (B), from about 1 to about 80% by weight of the second polymer (A), and from about 1 to about 80% by weight of the third polymer (C). 5 to about 25 weight percent of the first polymer (B), from about 3 to about 70 weight percent of the second polymer (A), and from about 20 to about 75 weight percent of the third The polymer (C) is preferred. The specific example of the present invention comprising a transparent miscible blend of polymers B, A and E comprises from about 1 to about 30 weight percent of the first polymer (B). From about 50 to about 98 weight percent of the second polymer (A), and from about 1 to about 20 weight percent of the third polymer (E). The blend comprises from about 5 to about The first paper size of 20% by weight is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -30- 1294445 A7 B7 V. Inventive Note (28) Polymer (B), from about 70 to about 90% by weight of the second polymer (A), and about 5 to about 1% by weight of the third polymer (E) are preferred. The invention comprises the transparency of polymers B, C and E. In a specific example of a miscible blend, the first polymer (B) comprising from about 1 to about 3 weight percent, and the second polymer (C) from about 50 to about 98 weight percent. And a third polymer (E) in an amount of from about 1 to about 2% by weight. The blend comprises from about 5 to about 20 weight percent of the first polymer (B), from about 70 to about 90% by weight of the second polymer (C), and about 5 to about 1% by weight of the third polymer (E) are preferred. A representative unit having the structure (V) is a residue of styrene, wherein the benzene ring may be substituted or unsubstituted. In one embodiment, the third polymer of the blend contains about 1 Å by weight of polystyrene residues. The blends of the present invention may optionally be blended with any other additive, such as a miscible polymer, in an amount that does not cause turbidity, including but not limited to biguanide A (BPA) polycarbonate or 2,2-bis(4-hydroxyl) Phenyl)propane, 6,6'-dihydroxy-3,3,3' 3'-tetramethylspirohydroindole (SBI), dimethyl-BPA (DMBPA), tetramethyl-BPA (TMBPA) And dimethyl-1,1-bis(4-hydroxyphenyl)methylphenylmethane (Dmb i sAP). The transparent miscible blend of the present invention may optionally be blended with any conventional additive used in optical applications, including but not limited to dyes, UV stabilized paper scales, and used in Chinese National Standard (CNS) A4 specifications (210X297 mm). (Please read the notes on the back and fill in the pages) Γ Ministry of Economic Affairs, Intellectual Property Office, Staff and Consumer Cooperatives Print -31 - 1294445 A7 B7 V. INSTRUCTIONS (29) Agents, Antioxidants, Thermal Stabilizers, and Release Agents, To form an optical object. In particular, it is preferred to form a blend of polycarbonate and an additive which aids in the processing of the blend to form the desired optical article. The blend may optionally comprise from about 0. 00 to about 10 weight percent of the desired desired additive, more preferably from about 0. 00 to about 10,000 by weight of the desired additive. Substances or additives which may be added to the polymer of the present invention include, but are not limited to, heat stabilizers, ultraviolet light absorbers, mold release agents, antistatic agents, slip agents, anti-caking agents, lubricants, anti-clouding agents, Colorants, fluorescent dyes and colorants, natural oils, synthetic oils, waxes, organic tannins, inorganic tantalum, other miscible polymers, and mixtures thereof. Suitable antistatic agents include distearylhydroxylamine, triphenylamine, tri-n-octylphosphine oxide, triphenylphosphine oxide, pyridine N-oxide, ethoxylated sorbitol single Laurate, and poly(alkylene glycol) compounds. Examples of the above-mentioned heat-resistant stabilizers printed by the Intellectual Property Office of the Intellectual Property Office of the Ministry of Economic Affairs include, but are not limited to, phenol stabilizers, organic thioether stabilizers, organophosphorus stabilizers, hindered amine stabilizers, epoxy stabilizers, and mixtures thereof. . The heat resistant stabilizer can be added in a solid or liquid form. Examples of ultraviolet light absorbers include, but are not limited to, salicylic acid ultraviolet light absorbers, diphenyl ketone ultraviolet light absorbers, benzotriazole ultraviolet light absorbers, cyanoacrylate ultraviolet light absorbers, and mixtures thereof. Examples of release agents include, but are not limited to, natural and synthetic sarcophagi, polyvinyl hydrazine, fluorocarbons, and other hydrocarbon release agents including: stearic acid, hydroxystearic acid, and other higher fatty acids, hydroxy fatty acids, And its fatty acid paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) -32-1294445 A7 B7 V. Description of invention (3〇) Release agent; decyl stearate, ethyl bis-hard Lipidamide, and other fatty acid guanamine, alkyl di fatty acid decylamine, and other fatty acid guanamine release agents; stearyl alcohol, cetyl alcohol, and other aliphatic alcohols, polyhydric alcohols, polyglycols, poly Glycerin and other alcohol release agents; butyl stearate, pentaerythritol tetrastearate, and other lower alcohol esters of fatty acids, polyol esters of fatty acids, polyglycol esters of fatty acids, and other fatty acid esters Molding agent; anthrone oil and other anthrone release agents, and mixtures of any of the foregoing. The colorant can be a pigment or a dye. The inorganic colorant and the organic colorant may be used singly or in combination in the present invention. Printed by the Intellectual Property Office of the Ministry of Economic Affairs and the Consumer Cooperatives. The appropriate carbonate redistribution catalyst can be introduced into the blend as appropriate. Suitable redistribution catalysts include a wide variety of bases and Lewis acids. Illustrative examples include amines, especially 1,3 -dimethylaminopropane, imidazole, benzimidazole, and benzotriazole, and other organic bases such as tetraalkylammonium hydroxide, such as tetramethyl hydroxide Alkyl ammonium, usually high hydrate, diethyldimethylammonium hydroxide, and tetraethylammonium hydroxide; tetramethylammonium phenate, usually in the form of a monohydrate; tetraalkylammonium acetate, such as acetic acid Tetramethylammonium; tetraalkylammonium tetraphenylborate, such as tetramethylammonium tetraphenylborate; and lithium stearate, lithium salt of bisphenol A, tetraethylammonium salt of bisphenol A, sodium phenolate Wait. Other suitable organic bases include phosphines such as triphenylphosphine. A wide variety of organometallics are suitable catalysts, including organotin compounds such as di(n-butyl)tin oxide, di(n-octyl)tin oxide, dibutanol di(n-butyl)tin, two Di(n-butyl)tin octoate, dibutyltin, tetramethyltin, tributyltin trifluoroacetate, tributyltin chlorophenol, bis((dibutyl)(phenoxy)tin oxide, and tributyltinhydride; The organic titaniumization paper scale applies to the Chinese national standard iTcNS) A4 specification (210X297 mm) ~ -33- 1294445 A7 B7 V. Invention description (31) Compound, such as tetrakis (isopropoxy) titanium, four (5 - A Ti-hepteoxy) titanium, and tetrakis (butoxy) titanium; and tetrakis (isopropoxy) cone, tris(ethoxy)aluminum, tris(phenoxy)aluminum, mercuric acetate, lead acetate, (diphenyl)mercury, (Tetraphenyl) wrong, and (tetraphenyl) sand yard. Also suitable for a wide range of hydrides, including sodium hydride, lithium hydride, aluminum hydride, boron hydride, hydrogenated ruthenium, lithium aluminum hydride, lithium borohydride, sodium borohydride, tetramethylammonium borohydride, hydroboration Tetrakis(n-butylammonium), tris(t-butoxy)aluminum hydride, and diphenylnonane; and simple inorganic substances such as lithium hydroxide, sodium citrate, sodium borate, cerium oxide, lithium fluoride, chlorine Lithium, lithium carbonate and zinc oxide. The transparent miscible blend can be molded by borrowing, compression molding, extrusion molding, and solution casting to produce the desired optical article. Injection molding is the preferred method of forming the article. Printed by the Ministry of Economic Affairs, Intellectual Property Office, Staff Consumer Cooperatives Because the blends of the present invention have advantageous properties such as low water absorption, good processability, and low birefringence, they are more advantageous for producing optical articles. The final application of the optical article of the blend of the present invention includes digital audio discs, digital variable discs, optical memory discs, optical discs, DVRs, and mediators; optical lenses such as contact lenses, spectacle lenses, and telescopes. Lens, and cymbal; optical fiber; magnetic field optical disc; data recording mediator; data transmission mediator; optical disc for camera; optical disc for static camera, etc. The blend can be used as a mediator for data storage, ie This material can be immobilized on or in the polymer. The blend can also be used as a substrate for the upper layer to apply a data storage mediator. In addition, some combinations of the two functions can be employed in a single device. This paper scale applies to the Chinese National Standard (CNS) Α4 specification (210Χ297 mm). A '~* -34 - 1294445 A7 B7 5. Inventive Note (32) In addition to being an optical object, the blend of the present invention can be used to produce Transparent article with better stomach properties. These properties include food chemical resistance and melt processability. The blends of the present invention are especially useful in the manufacture of molded articles, fibers, films and sheets. The blend of the present invention can be prepared by a process comprising blending the polymer at a temperature above about 240 ° C to a temperature in the range of from about 240 ° C to about 300 ° C. Preferably, the time is sufficient to form a transparent blended composition. Suitable methods for forming the blend include, but are not limited to, melt processes, solution preparation processes, dry blending processes, and extrusion processes. In addition to the foregoing compositions, the blends of the present invention may include at least one other modifying polymer. Suitable modifying polymers are those which form a miscible blend with the first and second polycarbonate moieties. Possible Modifications Polymers include other polycarbonates, polyesters, polyamides, polystyrenes, polyurethanes, polyarylates, liquid crystal polymers, vinyl polymers, and the like, and mixtures thereof. Suitable modifying polymers can be determined by those skilled in the art by conducting conventional miscibility tests using the possible modifying polymers. The Ministry of Economic Affairs, Intellectual Property Office, Employees, Consumer Cooperatives, Printed Embodiments The following examples are intended to provide a more complete disclosure and description of the compositions and methods for those skilled in the art, without limiting the inventors' view. The scope of the invention. The accuracy of quantities (eg, dosage, temperature, etc.) has been determined to the extent possible, but partial errors and deviations should be acceptable. Unless otherwise stated, the parts are by weight, the temperature is in °C, or at room temperature, the pressure & the scale is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -35 - 1294445 A7 B7 V. INSTRUCTIONS (33) The force is at or near atmospheric pressure. The materials and test methods used for the results presented herein are as follows: Water absorption (% Η 2〇) is measured by the following method, which is the same as AST Μ D 5 7 0, but according to the different thicknesses of the parts according to the examples Modification. The plastic part or disc is dried in a vacuum in a vacuum for one week. The sample is taken periodically and weighed to determine if it is dry (stop loss mass). The sample was taken out from the furnace, allowed to equilibrate to room temperature in a desiccator, and the dry weight was recorded. The sample was immersed in a water bath at 23 °C. The sample was taken out from the bath periodically, the surface was blotted dry, and the weight was recorded. The sample was repeatedly impregnated and the weight was measured until the sample became substantially saturated. When the weight gain averages less than 1% of the total weight increase during the 2 week period, the sample is considered to be substantially saturated or 'balanced 〃 (as described in section 7.4 of ASTM Method D-570-98) . The glass transition temperature (T g ) was determined by differential scanning calorimetry using PERKIN ELMER DSC7. The T g is calculated based on the 1 / 2 C p method using a heating slope of 20 ° C / min. The transmittance measurement was measured at 630 nm using an HP 8 4 5 3 UV-Vis spectrophotometer. This flaw is not corrected for the reflectivity of the surface of the part or for scattered light that penetrates the thickness of the part. The transmittance Y I and the ambiguity measurement using visible light were obtained by a Gardner* colorimeter. The C g oxime was determined as follows. The polymer (7 · 0 g) was placed in a heated mold of 5 · Ο X 0 · 5 inches, and the mold was compressed at 120 ° C above its glass transition temperature while being applied using a standard molding device. Applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm 1 ~ - -36- by this paper scale) Please read the back note Φ item first

Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing 1294445 Α7 Β7 Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing 5, invention description (34) 0 to the end of the pressure of 2,000 pounds. After the required amount of time under these conditions, the mold was cooled and the molded test rod was taken out by means of a Carver press. The molded test strips were examined under a polarizing microscope and fixed in the area observed on the test bar. The choice of viewing area is based on the lack of birefringence and is sufficiently distant from the end or side of the test strip. The sample is then placed in a device designed to provide a known amount of force perpendicularly along the rod while simultaneously illuminating the viewing zone of the rod with suitable polarized light. The rod is then subjected to six levels of applied stress, and each level of birefringence is measured with a Babinet compensation prism. The graph of birefringence versus stress produces a line having a slope equal to the stress optical coefficient Cg. In-plane birefringence (I B R ) and vertical birefringence (V B R ) were measured using a Dr. Schenk Prometeus MT136E disc tester. The CD was molded and subjected to birefringence measurement on a non-metallized CD substrate (1.2 mm disc). The barrel temperature indicates how hot the polymer located inside the machine is in the mold, and the mold temperature is the mold hole temperature at which the polymer is to be released. The barrel temperature can be, for example, 3 50 C, and the mold temperature can be, for example, 1 0 0 C. Examples 1 - 3 5 Table 1 lists experimental glass transition temperatures (T g ) for several blends of the present invention. In Example 1 -35, the T g was obtained from a solvent cast film. The film was prepared in the following manner. A 4 weight percent concentration solution was prepared for each polymer. The solution is then combined to form a suitable mixture. For example, the Chinese National Standard (CNS) A4 specification (21〇Χ297 mm) is applied to the paper scale. '~ -37- 1294445 Ministry of Economic Affairs Intellectual Property Bureau Staff Consumer Cooperative Printed A7 B7 V. Invention Description (35) BCC and AMPS For the 90/10 mixture of (Example 1), 9 grams of BCC solution was combined with 1 gram of A Μ PS solution. The combined solution is then distributed over the glass slide, allowing the solvent to evaporate overnight. The formed film was dried in a vacuum oven at 100 ° C for 3 days. Once dried, the film was tested for clarity and the Tg was measured. All of the films in Table 1 are transparent, have no ambiguity, and have a well-defined glass transition point, which can be predicted from the following mixture equation of Tg, τ gi# e ◎ of the blend: where W1 and W2 are weight Fraction, and Tgl & Tg2 is the glass transition temperature expressed in Kelvin units for individual polymers of the 2-component blend. Example 1 A 5 indicates that B C C and AMP S are mixed to form a single T g transparent blend. In Examples C 1 and C 2, the T g of the blend is represented by B C C and A Μ P S polymer 2Tg in the T g mixture equation shown. The clear single Tg blend also represents the BCC / B is AP blend of Examples 6 - 10, the Example 1 1 - 15 BCC / pc CD blend, and the Examples 16 - 2 1 B is AP / A Μ PS blend. The T g of B i s A Ρ and P C C D of Examples C 3 and C 4 are also individually listed in Table 1. This paper scale is common Chinese National Standard (CNS) A4 specification (210X297 mm)

-38- 1294445 A7 B7 V. INSTRUCTIONS (36) Table 1: Example of polymer blend-film data BCC AMPS BisAP PCCD PS Tg Example [wt % ] [ wt % ] Lw t %] [ wt % 1 [ wt % 1 [°C 1 cccc 1 0.9 7

0 12 3 4 5 6 1X 1X 1X 1M ^ 1X ο 2 141 76 180 70 121 118 111 98 94 144 146 150 160 170 131 125 116 95 80 Ministry of Economic Affairs Intellectual Property Office Staff Consumer Cooperative Printed

Qy AU ^~_ 2 3 3 0.2 0.1 0.9 164 0.2 0.8 147 0.25 0.75 143 0.3 0.7 131 0.5 0.5 I 19 0.7 0.3 I 13 0.04 0.25 0.71 138 0.10 0.10 0.80 111 0.10 0.80 0.10 136 0.19 0.20 0.6 I 137 0.20 0.60 0.20 144 0.33 0.33 0.3 3 155 0.35 0.15 0.50 138 0.50 0.10 0.40 137 0.65 0.05 0.30 139 0.65 0.15 0.20 130 0.8 0.1 0.1 126 0.75 0.2 0.05 I 15 0.1 0.8 0.1 164 0.2 0.75 0.05 144 This paper scale applies to the Chinese National Standard (CNS) A4 specification. (210X 297 mm) -39- 1294445 A7 B7 V. INSTRUCTION DESCRIPTION (37) Example 2 2 - 3 5 also represents a transparent single T g blend obtained from three components. When blending three polymers, the Tg is *predicted from the weight fraction of individual polymers, Wl, W2 and W3 and the Tg of individual polymers, Tgl, Tg2 and Tg3, using the following mixture rules: 1/ Tg,blend= w/Tgl + w/Ty w3/Tg3 * Example 2 2 - 3 1 shows that the blend of BCC, A Μ PS and B is AP according to the 3-component mixture rule also has The Tg has been fully defined. Example 3 BCC/AMP S/PS Blends of 2 and 3 3 and B i sAP/AMPS / PS Blends of Examples 34 and 35, demonstrating that if A Μ PS is also included in the mixture, then polycarbonate The ester and polystyrene can be mixed to form a clear blend. Example 3 6 — 4 3 Ministry of Economic Affairs Intellectual Property Office Staff Consumer Cooperative Printed Transparent Polymer Blend Selection Examples (listed in Table 2) were molded into optical objects to measure T g, C g , and optical transmission. Degree percentage, and equilibrium water absorption. The optical transmittance at 630 nm was measured using a ΗP UV-Vis spectrophotometer. The blend should have an optical transmittance of at least about 75 percent, preferably at least about 80 percent, and a Cg of less than about 60 Brewsters, preferably less than 5 5 Brewsters, and less than 5 0 B rewsters is better. The blend was prepared by mixing dry powders from individual polymer components in a He n s c h e 1 high intensity blender, followed by molding into optical articles. C g rod or molded (Examples 39 and 4 3 ), or injection molded into a stretching rod at a temperature between 2 50 and 3 20 t (the actual paper scale applies to the Chinese National Standard (CNS) A4 size (210X297 mm) -40- 1294445 A7 _ _____ B7 _ V. Invention description (38) Example 3 6 - 3 8 and 4 0 - 4 2 ), use, meat bone shape (gauge profile one 0 · 1 2 5 吋 thickness; 0 · 5 0 吋 width) 〇 Examples 36 and 37 (BCC/AMPS blend) means adding A Μ PS to make the blend C g ( 4 9 B rewsters ) It is reduced relative to BCC homopolymer (5 2 Brewsters) while maintaining a high degree of optical transparency. Similarly, Example 38 shows that the BCC/PCCD blend also has a high degree of optical transparency, while Cg is slightly lower than B C C. Examples 39 and 40 - BCC/B i sAP blends also showed a single Tg and high transparency (Example 40), but the Cg system was more than 813? The 6th increase. Finally, Examples 41-43 also demonstrate that the 3-component blend has a single Tg and high transparency. The BCC/AMPS/B i sAP of Example 4 2 has a C g of 40 Brewsters which is substantially lower than BCC and BPA-PC. Most of the blends, except those containing a local percentage (> about 80%) of B i sAP, have an equilibrium water absorption below B P A - P C . I believe that this low water absorption is expected, so that the disc maintains a low elevation angle and warpage and height data fidelity. The Ministry of Economic Affairs, the Intellectual Property Bureau, the employee consumption cooperative, prints A \) / Ns 6 / (V quasi-standard country j country. Moderate ruler, one piece of paper

| PCT 7 9 2 X -41 - 1294445 A7 B7 V. INSTRUCTIONS (39) I Ό CNIS §

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This paper scale applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) -42-1294445 A7 B7 V. Invention Description (40) Example 4 4 - 5 1 The embodiment shown in Table 3 is based on Henschel High An intensive mixer was prepared by mixing dry powders from individual polymer components and fed into a 28 mm WP extruder with a moderate screw design. The extrusion is carried out using a barrel temperature of from about 2.60 to about 280 ° C at a screw speed of 300 revolutions per minute and a flux of about 10 to 20 pounds per hour. Forming nine pellets using the Engel 275-ton injection molding machine, using a barrel temperature in the range of 550 to 580 °F, and a mold temperature in the range of 171 to 208 °F, injection molded into a disc ,as shown in Table 3. The optical transmittance of all discs at 630 nm is higher than 88%. In addition, both the yellowness index (Y I ) and the ambiguity are measured by a Gardner colorimeter - individually below 5 and 15 , which are within acceptable limits of the C D substrate. The clarity and low ambiguity of these examples support the conclusion that the polymer blend is miscible. Ministry of Economic Affairs Intellectual Property Office Staff Consumer Cooperative Printed Example 4 All blends in 4 - 5 1 have substantially lower Cg, IBR and VBR B than BPA - PC (Example C8), most of which have lower than BCC (Reaction C9) Birefringence 値. Since the in-plane birefringence (IBR) has the largest enthalpy near the inner diameter of these CD s and the smallest enthalpy near the outer diameter, the IBR range is listed as the maximum I BR at 30 mm and The minimum IBR at 50 mm is shown in Table 3. The difference between the maximum 値 and the minimum 値 is the range of I B R (Δ I B R ). The maximum I B R is preferably less than 100 nm, more preferably less than 50 nm, and more than 30 nm. Similarly, the minimum I B R system is greater than -10 nm, preferably greater than -5 〇 nanometer, and more preferably greater than one hundred nanometers. For example, this paper scale applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) -43-1294445 A 7 B7 V. Invention description (41) Table 3 lists the average 値 of vertical birefringence (VBR). VBR is calculated from the arithmetic mean of 30 and 50 mm. Ministry of Economic Affairs, Intellectual Property Bureau, Staff and Consumer Cooperatives, Printed Paper Scale Applicable to China National Standard (CNS) A4 Specification (210X297 mm) -44 - 1294445 A7 B7 V. Invention Description (42) 9.L "6 6.6 6.6 inch oo / /6 8 SI ynL SI inch oo re 104 rnl %·ι Li inch ί·ί LT 9·inch 3 inch Ί ΪΧ 9·68 6·68 16 οοΌ6 ΙΌ6 S8 10000 00.600 //600 Γ8οο ς.οοοο Π6 S 9 inch I s IcslI sssss SI 6COI s 9 in 081 aI UI SI SI OOOCNI 081 081 SI OOOCNI SI SI Θ OAS OS 0$ s 08Soc OG SAS 08UO 0^ OAun Θ Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing chain key 1« sdpw /dvluuPQ§_ PHVIUUS inch auusuPQos 8usupq_oo auusua 01/06 sd3/dvsiPQ0I/06 sd_sso_sd_3uSOI/06 auusd-vdPQOS ud-dvsa uduuPQ 33⁄43⁄4 IS OS 6 inch oo inch inch 9 inch S inch inch 3 § 6. oou

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This paper scale applies to China National Standard (CNS) A4 specification (210X297 mm) -46-1294445 A7 B7 V. Inventive Note (44) Example 4 4 and 4 5 (BCC / A Μ PS blend) individually have 4 4 and 3 6 Brewsters' Cg値, much lower than BCC ( 0 Brewsters ) and BPA-PC (80 In addition, the lower Ministry of Economic Affairs Intellectual Property Bureau Consumer Cooperative printed T g resulted in lower melt viscosity during molding For the birefringence of the molded CD. Example 4 5 has an average VBR between 3 and 13 and 2 60. It is also predicted that the lower T g and the fusion CD s are improved, especially More modern optical mediators in deep pits, such as high-density DVD and DV and writable formats. Example 46 (Bi sAP/AMPs) also BPA - PC and BCC VBR (about 255) although not as in the example 4 5 is as low as, but still between + - 3 6 milligrams. Examples 47 - 4 9 (BCC/PCCD) have IBR値 with nanometers, and the average VBR is about 4 2 0 - lower than BCC ( 5 3 8 ). But not as good as BCC / A 。. The BCC/B i sAP blend (implements a similar average VBR, but a higher IBR range (micron). Most The BCC/Bi sAP/AM compound has an average VBR in the I b R range of + - 3 5 nm, which is much lower than BPA - PC and BCC. This results in a lower IBR, body viscosity and groove. Slot structure can be recorded

D has a depth of less than ° within I B R micrometers. Actually + - 1 5 4 7 5, far P S blend Example 5 〇 ) with + - 4 〇 milli p s ternary blending , and 2 8 5 Please read the back δ note first and then fill in the page -47-

Claims (1)

[294445 Α8 Β8 C8 D8 VI. Application for Patent Scope 7 - Attachment 2A: Patent Application No. 901 1 2954 Application for Chinese Patent Application Replacement This year is less than 3 €, Amendment of April 27, 1996. 1 · One soluble a mixed polymer blend selected from the group consisting of: (i) 60 to 99 weight percent of the first polymer A, 1 to 40 weight percent of the second polymer B, and An additive for optical applications, as the case may be, wherein (A) is a polycarbonate comprising a structural unit corresponding to structure (I) 〇II 0—C- --------— (Please read the notes on the back and fill out this page) Printed by the Intellectual Property Office of the Intellectual Property Office of the Ministry of Economic Affairs (I) where R i and R 2 are separate Is C i - C 6 alkyl; X is C Η 2 ; m is an integer from 4 to 7; η is an integer from 1 to 4; and the lanthanide is an integer from 1 to 4 with the constraint being At least one of R 1 and R 2 is located at the 3 or 3 position; and the paper size is applicable to the Chinese National Standard (CNS) Α 4 specification (210Χ297 mm) 1294445 Α8 Β8 C8 D8 6. The scope of application for patent (B) includes a polymer corresponding to the structural unit of the structure (Π) (Please read the notes on the back and then fill out this page) where R3 is Ci-Ce alkyl, hydrogen, cyano or methoxy; (ϋ) 1 to 99% by weight of the first polymer A, 1 a second polymer C to 99% by weight, and an additive for optical applications, as the case may be, wherein (A) is a polycarbonate comprising a structure unit corresponding to structure (I) Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printed in which R 1 and R 2 are C C-C 6 alkyl; X is C Η 2; m is an integer from 4 to 7; η is from 1 to An integer of 4; and the Ρ is an integer from 1 to 4. The paper size is 中国 China National Standard (CNS) Α 4 (210Χ297 mm) 2- 1294445 A8 B8 C8 D8 VI. The scope of application for patent is R At least one of 1 and R 2 is at the 3 or 3' position; and (C) includes a polymer corresponding to the structural unit of the structure (melon) Wherein R4, Rs and R6 are each Cl-Cej: complete; (iii) 60 to 99% by weight of the first polymer A, 1 to 40% by weight of the second polymer D, and An additive for use in optical applications, where (A) is a polycarbonate comprising a structural unit of the Ministry of Economics, which corresponds to structure (I), printed by the Intellectual Property Office Staff Consumer Cooperative. OMMnc - ο where R a and R 2 are CX for C Η 2 ; C 6 alkyl; This paper scale applies to China National Standard (CNS) A4 specification (210X297 mm) I------- ---See-----------#1 (Please read the notice on the back of the threat and then fill out this page) (I) -3- 1294445 A8 B8 C8 D8 VI. The scope of application for patent m is An integer from 4 to 7; η is an integer from 1 to 4; and the lanthanide is an integer from 1 to 4, the restriction is that R! and at least one of R 2 is at a position of 3 or 3; And (D) comprising a cycloaliphatic polyester resin corresponding to the structural unit of the structure (IV) 〇II 〇_r7-〇-c-r8-c- (IV) (Please read the back note first and then fill out this page The Ministry of Economic Affairs, Intellectual Property Office, Staff Consumer Cooperative, which prints residues of aryl, alkane or naphthene in which R7 is a diol having 6 to 20 carbon atoms, and R8 contains 6 to 20 a decarboxylated residue of an aryl, aliphatic or cycloalkane of a dicarboxylic acid of a carbon atom, wherein the restriction is that at least one of R7 or R8 is a cycloaliphatic group; and (iv) is 1 to 40% by weight of the first Polymer B, 60 to 9 9 weight a second polymer C, and an additive for optical applications, as the case may be, wherein (B) includes a polymer corresponding to the structural unit of the structure (Π). The paper size is applicable to China National Standard (CNS). A4 specification (210X297 mm) -4- 1294445 A8 B8 C8 D8 VI. Patent application scope Wherein R3 is a Ci_C6 building group, hydrogen, cyano or methoxy; and (C) comprises a polymer (R4) corresponding to the structural unit of the structure (melon) ---------- Read the back of the back and fill out this page. Order Wherein R4, R5 and R6 are each a Cl-C6 "mercapto group, wherein the polymer blend has a glass transition temperature of from 1 〇 0 °C to 185 °C. 2. The miscible polymer blend according to claim 1, wherein (A) is selected to be a carbonate structural unit having the structure (I), and the carbonate structural unit having the structure (I) is additionally selected From: 1,1 - bis(4-hydroxy-3-methylphenyl)cyclohexane (BCC), 1,1-bis(4-hydroxy-3-methylphenyl)cyclopentane, 1, 1 - bis(4-hydroxy-3-methylphenyl)cycloheptane, and the residue of the mixture thereof, 〇3, a miscible polymer blend as in claim 1, wherein (B) is selected For the vinyl polymer structure with structure (Π), the paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) #1. Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing-5-1294445 A8 B8 C8 D8. Patent application unit, the structural (Π) vinyl polymer structural unit is selected from the group consisting of α-methyl polystyrene (AMPS) residues. (Please read the «Precautions on the back side and fill out this page again.) 4 · As in the patented scope, the miscible polymer blend, wherein (C) is selected to have a structure (melon) carbonate structure The unit, the carbonate structural unit having the structure (m) is selected from the group consisting of 1, 1, bis(4-hydroxyphenyl)methylphenylmethane (B i SAP). 5. The miscible polymer blend according to claim 1, wherein (D) is selected to have an ester structural unit having the structure (IV), and the ester structural unit having the structure (IV) comprises poly( Cyclohexane-i, 4-di-residual acid cyclohexane-1,4-dimethylene ester), also known as poly(1,4-cyclohexane-dimethanol-1,4-dicarboxylate (PCCD) residues. 6. The miscible polymer blend of claim 1, wherein the polymer blend is transparent. 7 - An article comprising a blend of a miscible polymer as in claim 1 of the patent application. Printed by the Intellectual Property Office of the Ministry of Economic Affairs, Employees' Consumption Cooperatives. 8 · If the object of claim 7 is applied for, the object is an optical object. 9. An object as claimed in claim 7 wherein the object is an optical data storage medium. The object of claim 7, wherein the optical data storage system comprises a data layer and a transparent top layer adjacent to the data layer, wherein the transparent top layer has a thickness equal to or less than 0.6 mm Thickness This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) -6- 1294445 A8 B8 C8 ____D8_ VI. Patent application scope (please read the note on the back and fill in this page) 1 1 ·如The article of claim 7 wherein the optical data storage system comprises a data layer and a transparent top layer adjacent to the data layer, wherein the data layer has a thickness equal to or less than 1.1 mm, and the transparent top layer is Has a thickness equal to or less than 1 〇〇 micrometer. 1 2 - A miscible polymer blend as claimed in claim 1, wherein the additive used in the optical application is from 0.001 to 10% by weight of the blend. 1 3 - a miscible polymer blend selected from the group consisting of: (i) from 1 to 80% by weight of the first polymer A, from 1 to 50% by weight a second polymer B, a third polymer C of from 1 to 80% by weight, and optionally an additive for optical applications, wherein (A) is a polycarbonate comprising a structure corresponding to ) The structural unit of the Ministry of Economic Affairs, the Intellectual Property Bureau, the employee consumption cooperative, printed 〇II Ο-C-- - (D where R i and R 2 are C i - C 6 alkyl; X is C Η 2 ; This paper scale applies to China National Standard (CNS) Α 4 specifications (210Χ297 public) PCT) 1294445 A8 B8 C8 D8 VI. The patent application scope m is an integer from 4 to 7; the η system is an integer from 1 to 4; and the Ρ is an integer from 1 to 4, and the restrictions are R i and R At least one group of 2 is located at the 3 or 3 position; (B) includes a polymer corresponding to the structural unit of the structure (Π) Wherein R3 is C:-C6 alkyl, hydrogen, cyano or methoxy; and (C) polymer comprising structural unit corresponding to structure (melon) Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing (R4) --------------tr—-----φ— (Please read the notes on the back and fill out this page) where R4, R5 and R6 are each Ci-Ce alkyl (ϋ) 5 0 to 98% by weight of the first polymer A, 1 to 30% by weight of the second polymer B, 1 to 20% by weight of the third polymer E, and optionally Additives for use in optical applications, where the paper scale is applicable to China National Standard (CNS) A4 specification (210X297 mm) -8-1294445 αβ C8 D8 VI. The scope of application (A) is polycarbonate, Including the structural unit corresponding to the structure (I) L -J (I) (Please read the «Precautions on the back side and fill out this page again) where R i and R 2 are each C i — C 6 alkyl; X is C Η 2 ; m is 4 η is an integer from 1 to 4; and the lanthanide is an integer from 1 to 4, with the proviso that at least one of R i and R 2 is at the 3 or 3 ' position; a polymer comprising a structural unit corresponding to the structure (Π) The Intellectual Property Office of the Intellectual Property Office of the Ministry of Economic Affairs prints the R3 system as C2-C6 alkyl, hydrogen, cyano or methoxy; and (E) the polymer corresponding to the structural unit of structure (V). China National Standard (CNS) A4 Specification (210X297 mm) -9 - 1294445 A8 B8 C8 D8 6. Patent application scope (V) wherein R9 is Ci-C6 alkyl, hydrogen, cyano or methoxy; (iii) 1 to 30% by weight of the first polymer B, 50 to 98% by weight a second polymer C, a third polymer E of from 1 to 20% by weight, and optionally an additive for optical applications, wherein (B) comprises a polymer corresponding to the structural unit of the structure (Π) (Π) where R3 is Ci- c6 alkyl, hydrogen, cyano or methoxy; (Please read the note on the back and fill out this page) Printed by the Intellectual Property Office of the Intellectual Property Office of the Ministry of Economic Affairs (c) Polymer (R4) of the structural unit of structure (m) This paper scale applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) -10- 1294445 A8 B8 C8 D8 VI. The scope of application for patents, where Rd, r5 and r6 are Ci- c6 alkyl and (E) include Polymer of structural unit of structure (v) Wherein R9 is a C1-C6 yard, gas, chlorine or methyl group, wherein the polymer blend has a glass transition temperature of from about 10 °C to about 185 °C. 1 4 - A miscible polymer blend as claimed in claim 13 wherein (A) is selected to have a carbonate structural unit of structure (I), the carbonate structural unit having structure (I) Further selected from: 1,1 bis(4-hydroxy-3-methylphenyl)cyclohexane (BCC), 1, 1 bis(4-hydroxy-3-methylphenyl)cyclopentane, 1 , 1 bis(4-hydroxy-3-methylphenyl)cycloheptane, and residues of the mixture thereof. 1 5 · A miscible polymer blend as claimed in claim 13 wherein (B) is selected as a vinyl polymer structural unit having a structure (Π), the vinyl having the structure (Π) The polymer structural unit is selected from the group consisting of residues of α-methyl polystyrene (AMPS). 1 6 · The blendable polymer blend as claimed in Article 13 of the patent scope, wherein (c) is selected to have the structure of (m) carbonate structure. The paper size is applicable to the Chinese National Standard (CNS) Α4 specification. (210Χ297 mm) ---------- (Please read the notice on the back of the threat and then fill out this page) Order the Ministry of Economic Affairs Intellectual Property Bureau Staff Consumer Cooperative Print -11 - 1294445 A8 B8 C8 D8 Ministry of Economic Affairs The Intellectual Property Office employee consumption cooperative printed six. The patent application scope element, the carbonate structural unit having the structure (ΙΠ) is selected from the residue 1, 1 bis(4-hydroxyphenyl)methylphenylmethane (BisAP) ). 1 7 - A miscible polymer blend as claimed in claim 13 wherein (D) is selected to have an ester structural unit having the structure (IV), and the ester structural unit having the structure (IV) includes Poly(cyclohexane-1,4-dicarboxylic acid cyclohexane-1,4-dimethylene ester), also known as poly(1,4-cyclohexane-dimethanol-1,4-dicarboxylic acid) Residue of ester (PCCD). 1 8 · A miscible polymer blend as claimed in claim 13 wherein (E) is selected as a vinyl polymer structural unit having the structure (V), the vinyl having the structure (V) The polymer structural unit is selected from the group consisting of the residue polystyrene (Ps). 1 9 - A miscible polymer blend as claimed in claim 13 wherein the polymer blend is transparent. 20 0 - An article comprising a soluble polymer blend as in claim 13 of the patent application. 2 1 · The object of claim 20, wherein the object is an optical object. 2 2 · The object of claim 20, wherein the object is an optical data storage medium. 2 3 - The object of claim 20, wherein the optical data storage system comprises a data layer and a transparent top layer adjacent to the data layer, wherein the transparent top layer has a thickness equal to or less than 6 mm The thickness. This paper size is applicable to China National Standard (CNS) Α4 specifications (21〇Χ25>7 mm) (please read the back of the τ» before you fill out this page) -12- 1294445 A8 B8 C8 D8 ___ VI. Application The object of claim 2, wherein the optical data storage system comprises a data layer and a transparent top layer adjacent to the data layer, wherein the data layer has a ratio equal to or less than 1 · 1 The thickness of the millimeter, and the transparent top layer has a thickness equal to or less than 1 〇〇 micrometer. 2 5 - A miscible polymer blend as claimed in claim 13 wherein the additive used in optical applications is from 0.001 to 10 weight percent of the blend. (Please read the notes on the back and fill out this page.) Printed by the Intellectual Property Office of the Ministry of Economic Affairs. The paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) -13-