RU2782844C2 - Polymer composition with filler, its production method and its use - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: present invention relates to a composition for preparation of filled halogenated polymer compositions with modified impact viscosity, showing optimal behavior in a melt, its production method, and a product containing this composition. The specified composition contains a) from 0.01 to 20 phr relatively to halogen-containing thermoplastic polymer of (meth)acrylate copolymer (A1) selected from copolymer containing at least 50 wt.% of methylmethacrylate, b) from 1 to 250 phr relatively to halogen-containing thermoplastic polymer of filler (F), c) halogen-containing thermoplastic polymer, and d) from 0.15 to 12 phr of impact viscosity modifier (IM1). (Meth)acrylate copolymer (A1) has a glass transition temperature from 65 to 100°C. Impact viscosity modifier (IM1) is polymer particles with a multilayer structure, which contains at least one layer (IM1L1) containing polymer (L1) having a glass transition temperature of less than 0°C, and at least one another layer (IM1L2) containing polymer (L2) having a glass transition temperature of more than 45°C. The mass ratio of layer (IM1L1)/layer (IM1L2) in polymer obtained by multistage polymerization is in the range by weight between 85/15 and 97/3.

EFFECT: resulting composition can be used for optimization of behavior in a melt, in particular, a speed of melting of halogenated polymer compositions with modified impact viscosity, and at the same time it does not significantly impact on characteristics of impact viscosity of halogenated polymer compositions.

25 cl, 3 tbl, 1 ex

Description

The field of technology to which the invention belongs

[001] The present invention relates to a composition containing a combination of a polymer processing aid and an impact modifier or a polymer processing aid, its precise composition, and a process for its preparation, and its use.

[002] In particular, the present invention relates to a composition containing a combination of a polymer processing aid and an impact modifier, or a polymer processing aid; and its application to halogen-filled impact-modified thermoplastic polymers.

[003] More specifically, the present invention relates to a filled halogen-containing polymer composition with a polymer processing additive and an impact modifier, to its composition and to a method for its preparation.

Technical problem

[004] Fillers are used in thermoplastic polymer compositions in general, and in halogenated polymer compositions in particular, for a number of reasons. They can increase the bulk of the composition, increase stiffness and strength, and reduce molding cycle times. They prevent process interruptions in the dies and neutralize decomposition products. Fillers can also be used to add color, opacity, and conductivity, or they can be used as a cheap material that lowers the cost of the formulation because the filler is cheaper than other formulation ingredients.

[005] However, the addition of a filler may change the melting characteristics of the polymer composition. Proper melting is essential to obtain good physical properties.

[006] Polymer compositions containing polymers with specific characteristics (such as polymer composition, glass transition temperature or a specific molecular weight range, as illustrative characteristics) are used as additives in thermoplastic polymer compositions in general and in halogenated polymer compositions in particular to improve processability. behavior of these various polymers or plastic resins, or to improve their performance. Therefore, these additives are also called processing aids.

[007] The additive polymer composition is compatible with thermoplastic polymer compositions in general and with halogenated polymer compositions in particular.

[008] Technological additives in small amounts in thermoplastic polymer compositions in general and halogenated polymer compositions in particular can improve processing performance by accelerating the melting process of these thermoplastic polymer compositions in general and halogenated polymer compositions in particular.

[009] Due to the filler added to the composition, the processing aid used for the unfilled composition does not have the same characteristics as the filled composition, especially in terms of the melting efficiency of the composition, but also in terms of impact strength.

[010] It is an object of the present invention to provide a polymer composition that acts as a processing aid and impact modifier for filled halogenated polymer compositions.

[011] It is also an object of the present invention to provide a polymer composition that acts as a processing aid and impact modifier for filled halogenated polymer compositions, regardless of the ratio of filler in the final composition.

[012] It is also an object of the present invention to provide a polymer composition that can be used to optimize melt behavior, in particular the melt rate of impact modifier-filled halogenated polymer compositions.

[013] Another object of the present invention is to eliminate variations in the polymer composition acting as a processing aid depending on the ratio of filler in filled halogenated polymer compositions with an impact modifier.

[014] A further object of the present invention is to reduce the cost of a polymer composition that acts as a processing aid for impact modifier filled halogenated polymer compositions by adding cheap components without affecting melting efficiency.

[015] Yet another object of the present invention is a method of making a polymer composition that acts as a processing aid or as a processing aid and impact modifier for filled halogenated polymer compositions with an impact modifier.

[016] Still another additional object is to provide a method for making a polymer composition that can be used to improve the melt behavior of filled halogenated polymer compositions with an impact modifier.

[017] Another goal is to provide a filled halogenated polymer composition with an impact modifier that is easy to process regardless of the filler ratio and contains the same (meth)acrylic processing aid.

[018] Another object of the present invention is also to provide a polymer composition that can be used to optimize the melt behavior, in particular the melting rate of filled halogenated polymer compositions, and which does not significantly affect the toughness characteristics, the latter meaning improved maintenance at the same level or less than 50% reduction.

State of the art

[019] Document US 2009/0111915 describes acrylic copolymers for use in highly filled compositions. In particular, the document describes filled polyvinyl chloride (PVC) materials as a composition for flooring, containing 70% of the mass. - 95% of the mass. filler, 1% wt. - 15% of the mass. PVC and 0.5% wt. - 4% of the mass. acrylic copolymer, or a composition for siding or pipes containing 15% of the mass. - 35% of the mass. filler, 50% wt. - 95% of the mass. PVC and 0.25-6% wt. acrylic copolymer.

[020] Document WO 2010/099160 describes composite polymer modifiers. The document describes a composite polymer modifier, consisting of 99% of the mass. - 1% of the mass. inorganic filler and 1% of the mass. - 99% of the mass. polymer technological additives, and from 0% wt. - 80% impact modifier.

[021] Document US 3373229 describes vinyl polymer compositions. The compositions contain polyvinyl chloride and high molecular weight polymers of methyl methacrylate or copolymers of methyl methacrylate with a small amount of alkyl acrylate as a processing aid. The composition may contain a filler.

[022] Document US 4329276 describes components for molding. The molding component is based on a polyvinyl chloride containing a composition of components. The composition of the components contains within 40-85% of the mass. an acrylic polymer preferably having a Tg between 70°C and 90°C and preferably containing methyl methacrylate and butyl methacrylate in a ratio of 50/50 to 85/15.

[023] US 2012/189837 describes an acrylic processing aid for vinyl foam extrusion. The acrylic processing aid is an acrylic copolymer preferably having a Tg of less than 60°C. The examples describe a copolymer of methyl methacrylate (70%) with butyl acrylate (30%). The acrylic copolymer used does not contain any filler.

[024] Document CN 104262845 describes a PVC/PMMA alloy material. The alloy contains the following components, in parts by weight: 37-62 parts of PVC resin, 25-38 parts of PMMA resin, 3.0-4.0 parts of a stabilizer, 4.0-8.0 parts of an impact modifier, 0.5-1, 0 part of technological additives, 0.5-1.0 part of weather-resistant agent, 3.0-5.0 parts of inorganic filler and 2.0-6.0 parts of pigment. The processing aid is an oxidized polyethylene wax.

[025] Document CN 103642161 describes a PVC pipe material with high impact strength. Chlorinated polyvinyl chloride material for pipes with high impact strength is prepared from the following raw materials, in parts by weight: 40-60 parts of chlorinated polyvinyl chloride (CPVC) resin, 30-50 parts of polyvinyl chloride (PVC) resin, 0.3-0.6 parts of polyethylene wax, 20-30 parts active special calcium carbonate, 2-3 parts isooctyltin dimethyldimercaptoacetate, 1-2 parts barium stearate, 1-2 parts ACR-401, 8-10 parts HIPS, 2-3 parts HIPS-g-PMMA, 4 -7 parts impact modifier, ACM resin, and 5-10 parts composite filler.

[026] None of the documents known from the literature describes a filled polymer composition containing a halogen-containing thermoplastic polymer with an impact modifier and a (meth)acrylic copolymer with a filler and optionally with an impact modifier, where part of the filler is added to the composition with (meth)acrylic copolymer, and part of the filler is added to the composition with a halogenated thermoplastic polymer.

Brief description of the invention

[027] Unexpectedly found that the composition containing

a) a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b),

b) a filler (F) or a mixture of two fillers (F1) and (F2),

c) a halogenated thermoplastic polymer, and

d) impact modifier (IM1),

characterized in that the glass transition temperature Tg of the (meth)acrylic copolymer (A1) is less than 105°C and that the amount of filler (F) or a mixture of two fillers (F1) and (F2) is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer, gives a composition with a low melting time and satisfactory impact properties.

[028] Unexpectedly, it was also found that a method for obtaining a composition containing

a) a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b),

b) a filler (F) or a mixture of two fillers (F1) and (F2),

c) a halogenated thermoplastic polymer, and

d) impact modifier (IM1),

said method includes the step

mixing with a halogenated polymer and filler (F) or (F2) composition P1a, characterized in that

composition P1a contains a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler (F) or (F1), and

where the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and that the amount of fillers (F1) and (F2) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer gives a composition with a short melt time and satisfactory impact properties.

[029] Unexpectedly, it was also found that a method for obtaining a composition containing

a) a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b),

b) a filler (F) or a mixture of two fillers (F1) and (F2),

c) a halogenated thermoplastic polymer, and

d) impact modifier (IM1),

said method includes the step

mixing with a halogenated polymer, an impact modifier (IM1) and a filler (F) or (F2) compositions, P1b, characterized in that

composition P1b contains a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), and a filler (F) or (F1) and

where the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and that the amount of fillers (F1) and (F2) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer gives a composition with a short melt time and satisfactory impact properties.

[030] Unexpectedly, it was also found that a method for obtaining a composition containing

a) a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b),

b) filler (F) or mixture of two fillers (F1) and (F2)

c) a halogenated thermoplastic polymer, and

d) impact modifier (IM1)

said method includes the step

mixing two compositions P1a and P2a, characterized in that

composition P1a contains a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler F1, and

composition P2a contains a halogenated polymer and filler F2

where the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and that the amount of fillers (F1) and (F2) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer gives a composition with a short melt time and satisfactory impact properties.

[031] Unexpectedly, it was also found that a method for obtaining a composition containing

a) a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b),

b) a filler (F) or a mixture of two fillers (F1) and (F2),

c) a halogenated thermoplastic polymer, and

d) impact modifier (IM1),

said method includes the step

mixing two compositions P1b and P2b, characterized in that

composition P1b contains a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and filler F1, and

composition P2b contains a halogenated polymer, impact modifier (IM1) and filler F2,

where the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers (F1) and (F2) together is between 1 phr and 250 phr with respect to a halogenated thermoplastic polymer gives a composition with a short melt time and satisfactory impact properties.

[032] Surprisingly, it was also found that a composition P1a containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler (F) or (F1 ), can be used to reduce the melting time of a composition containing a halogenated polymer and filler (F) or (F2), where the glass transition temperature Tg of the (meth)acrylic copolymer is less than 105°C and the amount of fillers (F) or (F1) and (F2) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[033] Surprisingly, it was also found that a composition P1a containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler (F) or (F1 ) can be used to reduce the melting time of a composition P2a containing a halogenated polymer and filler (F) or (F2), where the glass transition temperature Tg of the (meth)acrylic copolymer is less than 105°C and the amount of fillers (F) or (F1) and (F2 ) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[034] Surprisingly, it has also been found that a composition P1b containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and a filler (F) or (F1) can be used to reduce the time melting of a composition containing a halogen-containing polymer, an impact modifier (IM1) and a filler (F) or (F2), where the glass transition temperature Tg of the (meth)acrylic copolymer is less than 105°C and the amount of fillers (F) or (F1) and (F2) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[035] Surprisingly, it was also found that a composition P1a containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler (F) or (F1 ) can be used to reduce the melting time of a composition P2a containing a halogenated polymer and filler (F) or (F2), where the glass transition temperature Tg of the (meth)acrylic copolymer is less than 105°C and the amount of fillers (F) or (F1) and (F2 ) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

Detailed description of the invention

[036] According to the first aspect, the present invention relates to a composition containing

a) a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b),

b) a filler (F) or a mixture of two fillers (F1) and (F2),

c) a halogenated thermoplastic polymer, and

d) impact modifier (IM1),

characterized in that the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of filler (F) or a mixture of two fillers (F1) and (F2 ) is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[037] In a second aspect, the present invention relates to a method for preparing a composition containing

a) a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b),

b) a filler (F) or a mixture of two fillers (F1) and (F2),

c) a halogenated thermoplastic polymer, and

d) impact modifier (IM1),

said method includes the step

mixing with a halogenated polymer and filler (F) or (F2) compositions P1a, characterized in that

composition P1a contains a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler (F) or (F1), and

where the glass transition temperature Tg of the (meth)acrylic copolymer or mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers (F) or (F1) and (F2) together is between 1 phr and 250 phr with respect to halogenated thermoplastic polymer.

[038] In a third aspect, the present invention relates to a method for preparing a composition containing

a) a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b),

b) a filler (F) or a mixture of two fillers (F1) and (F2),

c) a halogenated thermoplastic polymer, and

d) impact modifier (IM1),

said method includes the step

mixing with a halogenated polymer, an impact modifier (IM1) and a filler (F) or (F2) compositions P1b, characterized in that

composition P1b contains a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and a filler (F) or (F1), and

where the glass transition temperature Tg of the (meth)acrylic copolymer or mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers (F) or (F1) and (F2) together is between 1 phr and 250 phr with respect to halogenated thermoplastic polymer.

[039] In a fourth aspect, the present invention relates to a method for preparing a composition containing

a) a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b),

b) a filler (F) or a mixture of two fillers (F1) and (F2),

c) a halogenated thermoplastic polymer,

d) impact modifier (IM1),

said method includes the step

mixing two compositions P1a and P2a, characterized in that

composition P1a contains a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler (F) or (F1), and

composition P2a contains a halogenated polymer and filler (F) or (F2),

where the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers (F) or (F1) and (F2) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[040] In a fifth aspect, the present invention relates to a method for preparing a composition containing

a) a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b),

b) a filler (F) or a mixture of two fillers (F1) and (F2),

c) a halogenated thermoplastic polymer,

d) impact modifier (IM1),

said method includes the step

mixing two compositions P1b and P2b, characterized in that

composition P1b contains a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and a filler (F) or (F1), and

composition P2b contains a halogenated polymer, an impact modifier (IM1) and a filler (F) or (F2),

where the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers (F) or (F1) and (F2) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[041] In a sixth aspect, the present invention relates to the use of a composition P1a comprising a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler (F) or (F1), which can be used to reduce the melting time of a composition containing a halogenated thermoplastic polymer and filler (F) or (F2), where the glass transition temperature Tg of a (meth)acrylic copolymer or a mixture of two (meth)acrylic copolymers (A1a) and ( A1b) is less than 105° C. and the amount of fillers (F) or (F1) and (F2) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[042] In a seventh aspect, the present invention relates to the use of a composition P1a containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler F1, for reducing the melting time of a composition P2a containing a halogen-containing thermoplastic polymer and a filler F2, where the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers F1 and F2 together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[043] In an eighth aspect, the present invention relates to the use of a composition P1b containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and a filler (F) or (F1) to reduce melting time of a composition containing a halogen-containing thermoplastic polymer, an impact modifier (IM1) and a filler (F) or (F2), where the glass transition temperature Tg of the (meth)acrylic copolymer or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers (F) or (F1) and F2 together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[044] In a ninth aspect, the present invention relates to the use of a composition P1a containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler F1, for reducing the melting time of a composition P2a containing a halogen-containing thermoplastic polymer and a filler F2, where the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers F1 and F2 together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[045] In a tenth aspect, the present invention relates to a method for reducing the melting time of a composition containing a halogen-containing thermoplastic polymer and a filler (F) or (F2) by adding a composition containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler (F) or (F1), where the glass transition temperature Tg of the (meth)acrylic copolymer or mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less 105°C and the amount of fillers (F) or (F1) and F2 together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[046] In an eleventh aspect, the present invention relates to a method for reducing the melting time of a P2a composition containing a halogen-containing thermoplastic polymer and an F2 filler by adding a P1a composition containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler F1, wherein the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers F1 and F2 together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[047] In a twelfth aspect, the present invention relates to a method for reducing the melting time of a composition containing a halogenated polymer, an impact modifier (IM1) and a filler (F) or (F2) by adding a composition P1b containing a (meth)acrylic copolymer (A1) or a blend of two (meth)acrylic copolymers (A1a) and (A1b) and a filler (F) or (F1) wherein the glass transition temperature Tg of the (meth)acrylic copolymer or blend of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers (F) or (F1) and F2 together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[048] In a thirteenth aspect, the present invention relates to a method for reducing the melting time of a P2a composition containing a halogenated polymer and an F2 filler by adding a P1a composition containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler F1, wherein the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers F1 and F2 together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer

[049] The term "copolymer", as used, means that the polymer is composed of at least two different monomers.

[050] The term "(meth)acrylic", as used, refers to any kind of acrylic and methacrylic monomers.

[051] The term "(meth)acrylic polymer", as used, means that the (meth)acrylic polymer contains mainly polymers containing (meth)acrylic monomers, which constitute 50% of the mass. or more from (meth)acrylic polymer.

[052] The term "impact modifier" refers to a material that, after being incorporated into a polymeric material, enhances the impact resistance and impact resistance of that polymeric material via microphase domains of the rubber material or the rubber polymer.

[053] The term "rubber", as used, refers to the thermodynamic state of a polymer above its glass transition temperature.

[054] The term "rubber polymer", as used, refers to a polymer that has a glass transition temperature (Tg) below 0°C.

[055] As "polymer obtained by multi-stage polymerization", as used, refers to a polymer formed in a sequential manner using the method of multi-stage polymerization. A multi-stage emulsion polymerization method is preferred in which the first polymer is a first stage polymer and the second polymer is a second stage polymer, that is, the second polymer is formed by emulsion polymerization in the presence of the first polymer in the emulsion.

[056] The term "dispersion", as used, refers to a highly dispersed system with a continuous liquid phase and a dispersed solid phase that is distributed in the continuous phase.

[057] The term "emulsion" as used refers to a liquid/liquid mixture of a liquid dispersed phase in a liquid continuous phase.

[058] The term "PVC", as used, refers to polyvinyl chloride in the form of a homopolymer or copolymer containing at least 50% of the mass. vinyl chloride.

[059] The term "filler", as used, refers to a solid extender added to the polymer to improve properties and/or to reduce cost.

[060] The abbreviation ʺphrʺ refers to parts per hundred parts of resin. For example, 15 phr of filler in a PVC preparation means that 15 kg of filler is added per 100 kg of PVC.

[061] Regarding the composition of the present invention, it contains between 1 phr and 250 phr of filler (F) or a mixture of two fillers (F1) and (F2) relative to the halogenated thermoplastic polymer.

[062] Preferably, the composition of the present invention contains more than 2 phr filler (F) or a mixture of two fillers (F1) and (F2) in relation to the halogenated thermoplastic polymer.

[063] More preferably, the composition of the present invention contains between 2 phr and 200 phr, even more preferably between 3 phr and 180 phr, preferably between 4 phr and 150 phr, and more preferably between 5 phr and 120 phr, and most preferably between 5 phr and 100 phr of filler (F) or a mixture of two fillers (F1) and (F2) relative to the halogenated thermoplastic polymer.

[064] Regarding the polymer composition or composition of the present invention, it contains between 0.01 phr and 20 phr, preferably between 0.05 and 17 phr, more preferably between 0.1 phr and 15 phr, preferably between 0.15 phr and 12 phr, and more preferably between 0.15 phr and 10 phr of a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) relative to the halogenated thermoplastic polymer.

[065] Regarding the polymer composition or composition of the present invention, it contains between 0.01 phr and 20 phr, preferably between 0.05 and 17 phr, more preferably between 0.1 phr and 15 phr, preferably between 0.15 phr and 12 phr, and more preferably between 0.15 phr and 10 phr of an impact modifier (IM1).

[066] In the first most preferred embodiment of the composition of the present invention, it contains between 0.15 phr and 9 phr of a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) relative to the halogenated thermoplastic polymer.

[067] In the second most preferred embodiment of the composition of the present invention, it contains between 0.15 phr and 4 phr of a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) relative to the halogenated thermoplastic polymer.

[068] Advantageously, the composition contains more impact modifier (IM1) as a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) relative to the halogenated thermoplastic polymer.

[069] According to the present invention, part of the filler (F) or part of the mixture of two fillers (F1) and (F2) is added to the composition with (meth)acrylic copolymer (A1) or with a mixture of two (meth)acrylic copolymers (A1a) and ( A1b). Another part of the filler (F) or another part of the mixture of two fillers (F1) and (F2) is added to the composition either separately or already with a halogen-containing thermoplastic polymer. By "already with the halogenated thermoplastic polymer" it is meant that said other part of the filler (F) or part of the mixture of the two fillers (F1) and (F2) is added to the halogenated thermoplastic polymer to form the (meth)acrylic copolymer (A1) or the mixture of the two (meth)acrylic copolymers (A1a) and (A1b), which both already contain part of the filler (F) or part of the mixture of two fillers (F1) and (F2).

[070] According to one of the embodiments of the present invention, part of the filler (F) or a mixture of two fillers (F1) and (F2) is added to the composition with (meth)acrylic copolymer (A1) or with a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and the other part of the filler (F) or the mixture of the two fillers (F1) and (F2) is added to the composition with the halogenated thermoplastic polymer.

[071] Preferably, the portion of the filler (F) or mixture of the two fillers (F1) and (F2) that is added to the composition separately or that is already with the halogenated thermoplastic polymer exceeds the portion of the filler (F) or mixture of the two fillers (F1 ) and (F2), which is added to the composition with (meth)acrylic copolymer (A1) or with a mixture of two (meth)acrylic copolymers (A1a) and (A1b).

[072] According to the present invention, the impact modifier (IM1) can be added as a separate compound when preparing the composition of the present invention or added together with the composition P1a, which contains the impact modifier (IM1).

[073] Regarding the (meth)acrylic copolymer (A1) or two (meth)acrylic copolymers (A1a) and (A1b), they are (meth)acrylic copolymer containing at least 50% of the mass. polymer units coming from methyl methacrylate.

[074] More preferably, the polymer (A1) contains a comonomer or comonomers that can be copolymerized with methyl methacrylate in so far as the polymer (A1) has a glass transition temperature of less than 105°C.

[075] More preferably, both (meth)acrylic copolymers (A1a) and (A1b) contain a comonomer or comonomers that can be copolymerized with methyl methacrylate insofar as the blend of the two (meth)acrylic copolymers (A1a) and (A1b) has an average glass transition temperature less than 105°C.

[076] The comonomer or comonomers in the copolymers (A1), (A1a) and (A1b) are preferably selected from (meth)acrylic and/or vinyl monomers.

[077] The (meth)acrylic comonomer in the (meth)acrylic copolymer (A1), (A1a) and (A1b) contains monomers selected from C1-C12 alkyl (meth)acrylates. The vinyl comonomer contains monomers selected from styrene and substituted styrene. Even more preferably, the (meth)acrylic comonomer in polymer (A1) contains C1-C4 alkyl methacrylate monomers and/or C1-C8 alkyl acrylate monomers.

[078] Most preferably, the acrylic or methacrylic comonomers of the (meth)acrylic copolymer (A1) or the two (meth)acrylic copolymers (A1a) and (A1b) are selected from methyl acrylate, propylacrylate, isopropylacrylate, butyl acrylate, t-butyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate and mixtures thereof, insofar as the (meth)acrylic copolymer (A1) or the mixture of two (meth)acrylic copolymers (A1a) and (A1b) has a glass transition temperature of less than 105°C.

[079] Preferably, the (meth)acrylic copolymer (A1) contains at most 90 wt%, more preferably at most 85 wt%, and preferably at most 81 wt%. polymer units coming from methyl methacrylate.

[080] In a specific embodiment, the (meth)acrylic copolymer (A1) is a copolymer of methyl methacrylate with ethyl acrylate and/or butyl acrylate.

[081] More preferably, the glass transition temperature Tg of the (meth)acrylic polymer (A1) or the average glass transition temperature Tg of a mixture of two (meth)acrylic copolymers (A1a) and (A1b) constituting at least 50% of the mass. polymer units coming from methyl methacrylate is between 60°C and 105°C, even more preferably between 65°C and 100°C, and preferably between 70°C and 100°C.

[082] The glass transition temperature Tg can be estimated, for example, using dynamic methods such as thermomechanical analysis (DMA).

[083] Preferably, the weight average molecular weight Mw of the (meth)acrylic copolymer (A1) or two (meth)acrylic copolymers (A1a) and (A1b) constituting at least 50% of the mass. polymer units coming from methyl methacrylate is at least 300,000 g/mol, preferably at least 500,000 g/mol, more preferably at least 750,000 g/mol, preferably at least 1,000,000 g/mol mol, and most preferably at least 1500000 g/mol.

[084] Preferably, the weight average molecular weight Mw of the (meth)acrylic copolymer (A1) or two (meth)acrylic copolymers (A1a) and (A1b) constituting at least 50% of the mass. polymer units coming from methyl methacrylate less than 20000000 g/mol, preferably less than 15000000 g/mol, more preferably less than 12000000 g/mol, preferably less than 10000000 g/mol, and most preferably less than 9000000 g/mol.

[085] More preferably, the weight average molecular weight Mw of the (meth)acrylic copolymer (A1) or two (meth)acrylic copolymers (A1a) and (A1b) constituting at least 50% of the mass. polymer units coming from methyl methacrylate is between 300,000 g/mol and 20,000,000 g/mol, even more preferably between 500,000 g/mol and 15,000,000 g/mol, even more preferably between 1,000,000 g/mol and 12,000,000 g/mol , and preferably between 1500000 g/mol and 10000000 g/mol.

[086] (Meth)acrylic copolymer (A1) or two (meth)acrylic copolymer (A1a) and (A1b), constituting at least 50% of the mass. polymer units emanating from methyl methacrylate are preferably obtained by emulsion polymerization, to obtain an aqueous dispersion of spherical polymer particles of (meth)acrylic copolymer (A1) or two (meth)acrylic copolymers (A1a) and (A1b).

[087] One possible method for producing an aqueous dispersion of spherical polymer particles containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is to use a multi-stage method.

[088] In one step of the multi-step process, the (meth)acrylic copolymer (A1) is obtained.

[089] A mixture of two (meth)acrylic copolymers (A1a) and (A1b) can also be obtained by a multi-stage method. The (meth)acrylic copolymer (A1a) is obtained in one step of the multi-step process and the (meth)acrylic copolymer (A1b) is obtained in the other step.

[090] Regarding spherical polymer particles, they have a weighted average particle size ranging between 20 nm and 500 nm. Preferably, the weight average particle size of the polymer is between 50 nm and 400 nm, more preferably between 75 nm and 350 nm, and preferably between 80 nm and 300 nm.

[091] Regarding the filler (F), (F1) and/or (F2), they are an inorganic filler or a mineral filler.

[092] Regarding the mineral filler, glass fibers, hollow glass microspheres, inorganic compounds such as minerals and salts, including calcium carbonate (CaCO ₃ ), silica, silicates such as calcium silicate or metasilicate, clay such as bentonite, mica, talc, alumina trihydrate, magnesium hydroxide, metal oxides, or combinations of two or more of them.

[093] Preferably, the mineral filler is selected from calcium carbonate, titanium dioxide or calcined clay, silica (fine or precipitated), clay, montmorillonite (nanoclay), zeolite, perlite, or any other type of inorganic material that can be obtained as a suspension.

[094] More preferably, part of the filler (F) or a mixture of two fillers (F1) and (F2) is a mineral filler selected from calcium carbonate, calcined clay, silica (highly dispersed or precipitated), clay, montmorillonite (nanoclay), zeolite or perlite.

[095] Even more preferably, the mineral filler is selected from calcium carbonate, calcined clay, silica (fine or precipitated), clay, montmorillonite (nanoclay), zeolite, or perlite.

[096] In an even more preferred embodiment, the mineral filler is calcium carbonate (CaCO ₃ ).

[097] Preferably, the calcium carbonate is selected from precipitated calcium carbonate (PCC), ground natural calcium carbonate (GCC), or nanoparticulate precipitated calcium carbonate (NPCC).

[098] The mineral filler may also be in the form of a slurry.

[099] Preferably, the filler (F) or (F2), which is mixed with at least one of the (meth)acrylic copolymers (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), is in suspension form.

[100] Regarding the suspension of mineral filler, it is an aqueous dispersion of mineral filler with a solids content, preferably between 5% of the mass. and 90% of the mass, and mainly between 50% of the mass. and 80% of the mass. This aqueous dispersion may contain any particular surfactant, dispersing agent, additive, or filler surface treatment that may advantageously improve the quality of the suspension (stability, viscosity, or compatibility with the host polymer matrix).

[101] Regarding the impact modifier (IM1), it is a polymer impact modifier. Preferably, the impact modifier (IM1) is a polymer particles having a multilayer structure. More preferably, such an impact modifier (IM1) is a core/sheath polymer.

[102] Polymer particles having a multilayer structure have a more or less spherical shape. The polymer particle has a weighted average particle size (diameter) between 20 nm and 500 nm. Preferably, the weight average particle size of the polymer particles is between 50 nm and 400 nm, more preferably between 75 nm and 350 nm, and preferably between 80 nm and 300 nm.

[103] The polymer particles of the present invention are produced by a multi-stage method, such as a method including two, three or more stages, each stage gives a layer, the method generally gives a particle with a multilayer structure. The first stage or first stages give the core, the next stage or all subsequent stages give the shell or shells.

[104] The polymeric impact modifier (IM1) in the form of polymer particles having a multilayer structure contains at least one layer (IM1L1) containing a polymer (L1) having a glass transition temperature below 0°C and at least another layer (IM1L2) containing a polymer (L2) having a glass transition temperature above 45°C.

[105] More preferably, the glass transition temperature Tg of the polymer (L1) is between -100°C and 0°C, even more preferably between -80°C and 0°C, and preferably between -80°C and - 20°C, and more preferably between -70°C and -20°C.

[106] Preferably, the glass transition temperature Tg of the polymer (L2) is between 60°C and 150°C. More preferably, the glass transition temperature of the polymer (L2) is between 80°C and 140°C, preferably between 90°C and 135°C, and more preferably between 90°C and 130°C.

[107] Regarding the preparation of samples of the respective polymers (L1) and (L2), they can be obtained separately, and not using a multi-stage method, for easier individual assessment and measurement of the glass transition temperature Tg of the respective polymers in the respective stages.

[108] The mass ratio of layer (IM1L1)/layer (IM1L2) in the polymer obtained by multi-stage polymerization is preferably at least 70/30, more preferably at least 80/20, even more preferably at least , 85/15, predominantly at least 86/14, more predominantly 87/13, even more predominantly 88/12, and most predominantly 89/11.

[109] The mass ratio of layer (IM1L1)/layer (IM1L2) in the polymer obtained by multi-stage polymerization is preferably in the range, by weight, between 70/30 and 99/1, more preferably 80/20 and 98/2, even more preferably 85/15 and 97/3, preferably 86/14 and 97/3, more preferably 87/13 and 97/3, even more preferably 88/12 and 97/3, and most preferably 89/11 and 96 /four.

[110] Preferably, the polymer L1 is more than 85% of the mass. polymer impact modifier (IM1), and more preferably, more than 86% of the mass, and preferably more than 87% of the mass.

[111] The multilayer structure of IM1 may have various structures. The layer (IM1L1) containing the polymer (L1) having a glass transition temperature below 0° C. may be the core of the polymeric impact modifier (IM1) or an intermediate layer, but never the outermost layer. The layer (IM1L2) containing the polymer (L2) having a glass transition temperature above 45° C. may be the outermost layer.

[112] The layer (IM1L2) containing the polymer (L2) is preferably a (meth)acrylic copolymer containing at least 50% of the mass. polymer units coming from methyl methacrylate. Preferably, the polymer (L2) or most of the polymer (L2) of the layer (IM1L2) is grafted onto the underlying layer.

[113] In the first preferred embodiment (IM1), the polymer (L1) having a glass transition temperature below 0°C is a (meth)acrylic polymer containing at least 50% of the mass. monomers from alkyl acrylates.

[114] More preferably, the polymer (L1) contains a comonomer or comonomers that can be copolymerized with an alkyl acrylate, as long as the polymer (A1) has a glass transition temperature of less than 0°C.

[115] The comonomer or comonomers in polymer (L1) are preferably selected from (meth)acrylic monomers and/or vinyl monomers.

[116] The (meth)acrylic comonomer in polymer (L1) contains monomers selected from C1-C12 alkyl(meth)acrylates. Even more preferably, the (meth)acrylic comonomer in polymer (L1) contains C1-C4 alkyl methacrylate monomers and/or C1-C8 alkyl acrylate monomers.

[117] Most preferably, the acrylic or methacrylic comonomers in polymer (L1) are selected from methyl acrylate, propylacrylate, isopropylacrylate, butyl acrylate, t-butyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate, and mixtures thereof, insofar as polymer (L1) has a glass transition temperature of less than 0° C.

[118] Preferably, the polymer (A1) is cross-linked. This means that a cross-linking agent with another monomer or monomers is added. The crosslinker contains at least two groups that can polymerize.

[119] In one of the specific embodiments, the polymer (L1) is a homopolymer of butyl acrylate.

[120] In another specific embodiment, polymer (L1) is a copolymer of butyl acrylate and at least one crosslinker. Agent for cross-linking is less than 5% of the mass. this copolymer.

[121] More preferably, the glass transition temperature Tg of the polymer (L1) of the first embodiment is between -100°C and 0°C, even more preferably between -100°C and -5°C, preferably between -90° C and -15°C, and more preferably between -90°C and -25°C.

[122] In the second preferred embodiment, the polymer (L1)having a glass transition temperature below 0°C contains at least 50% of the mass. polymer units emanating from isoprene or butadiene, and the stage or layer (IML1) is the innermost layer of the polymer particle having a multilayer structure. In other words, the step of making the layer (IM1L1) containing the polymer (L1) is to make the core of the polymer particle.

[123] As an example, for the core polymer (L1) of the second embodiment, isoprene homopolymers or butadiene homopolymers, isoprene-butadiene copolymers, isoprene copolymers with at most 98 wt. vinyl monomer and butadiene copolymers with at most 98% of the mass. vinyl monomer. The vinyl monomer may be styrene, alkylstyrene, acrylonitrile, alkyl(meth)acrylate, or butadiene or isoprene. In one embodiment, the core is a butadiene homopolymer.

[124] More preferably, the glass transition temperature Tg of the polymer (L1) of the second embodiment, containing at least 50% of the mass. polymer units coming from isoprene or butadiene is between -100°C and 0°C, even more preferably between -100°C and -5°C, preferably between -90°C and -15°C, and even more preferably, between -90°C and -25°C.

[125] In one embodiment, the impact modifier (IM1) may also contain a filler (F) or (F1) as defined above.

[126] Regarding the halogenated polymer, one can consider:

[127] - homopolymers and copolymers of vinyl chloride (PVC) and vinylidene chloride (PVDC), vinyl resins containing vinyl chloride units in their structure, such as copolymers of vinyl chloride, and vinyl esters of aliphatic acids, in particular vinyl acetate, copolymers of vinyl chloride with acrylic esters and methacrylic acid and with acrylonitrile, copolymers of vinyl chloride with diene compounds and unsaturated dicarboxylic acids or their anhydrides, such as copolymers of vinyl chloride with diethyl maleate, diethyl fumarate or maleic anhydride, post-chlorinated polymers and copolymers of vinyl chloride, copolymers of vinyl chloride and vinylidene chloride with unsaturated aldehydes, ketones and ethers such as acrolein, crotonaldehyde, vinyl methyl ketone, vinyl methyl ether, vinyl isobutyl ether, and the like; polymers of vinylidene chloride and its copolymers with vinyl chloride and other polymerizable compounds;

[128] - polymers of vinyl chloroacetate and dichlorodivinyl ether; chlorinated polymers of vinyl carboxylate such as vinyl acetate, vinyl propionate, vinyl butyrate, chlorinated polymer esters of acrylic acid and α-substituted acrylic acid such as methacrylic acid, nitriles, amides, alkyl esters such as acrylonitrile, (meth) acrylamide, methyl (meth ) acrylate, butyl acrylate, ethyl acrylate, 2-ethylhexyl acrylate;

[129] - polymers of vinylaromatic derivatives such as styrene, dichlorostyrene; chlorinated rubbers;

[130] - chlorinated olefin polymers such as ethylene, propene, 1-butene, (2,2,1)bicycloheptene-2, (2,2,1)bicycloheptadiene-2,5;

[131] - polymers and post-chlorinated polymers of chlorobutadiene, and their copolymers with vinyl chloride, chlorinated natural and synthetic rubbers, and also mixtures of these polymers with each other or with other polymerizable compounds.

[132] - grafted halogen-containing copolymers, where the halogen-containing polymer part is grafted onto a (meth)acrylic homo- or copolymer, in the form of particles, which may or may not be cross-linked.

[133] Preferably, the halogenated polymer is a thermoplastic polymer rather than an elastomeric polymer. The glass transition temperature (measured by differential scanning calorimetry) of the thermoplastic polymer is at least 40°C, preferably 50°C.

[134] Preferably, the halogen in the halogen-containing polymer is selected from fluorine or chlorine, and preferably, the halogen is chlorine.

[135] The chlorine-containing polymer is selected from polymers or polymer blends selected from homopolymer vinyl chlorides such as polyvinyl chloride, polyvinylidene chloride, chlorinated polyvinyl chloride, post-chlorinated polyvinyl chloride, and copolymers formed by polymerization of vinyl chloride monomer containing up to 40% comonomer, such as vinyl acetate, vinyl butyrate, vinylidene chloride, propylene, methyl methacrylate, and the like, as well as chlorine-containing polymers containing other polymers such as chlorinated polyethylene, acrylonitrile-butadiene-styrene terpolymers, methyl methacrylate-butadiene-styrene terpolymers; polyacrylate resins, polymethyl methacrylate resins and alkyl acrylate, methyl methacrylate, butadiene terpolymer, preferably the chlorine-containing polymer is polyvinyl chloride or post-chlorinated polyvinyl chloride.

[136] Preferably, the chlorine-containing polymer is selected from homo- and copolymers of vinyl chloride (VC); containing at least 50% of the mass. units of VC, preferably at least 70% of the mass. units of VC, more preferably at least 80% of the mass. units of VC, mainly at least 85% of the mass. VC units; or from their mixtures.

[137] Regarding the method for preparing the polymer composition of the present invention, it includes the step

mixing with halogenated polymer and filler (F) or (F2) composition P1a,

characterized in that the composition P1a contains a (meth)acrylic copolymer (A1) and an impact modifier (IM1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and an impact modifier (IM1); and filler (F) or (F1), and

where the glass transition temperature Tg of the (meth)acrylic copolymer is less than 105°C and the amount of fillers (F) or (F1) and (F2) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[138] With regard to a variant of the method for preparing the polymer composition of the present invention, it includes the step

mixing with halogenated polymer, impact modifier (IM1) and filler (F) or (F2) of composition P1b,

characterized in that the composition P1b contains a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and an impact modifier (IM1); and filler (F) or (F1), and

where the glass transition temperature Tg of the (meth)acrylic copolymer is less than 105°C and the amount of fillers (F) or (F1) and (F2) together is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[139] Fillers (F1) and (F2) may be the same or different. If fillers (F1) and (F2) are the same, they can be considered together simply as filler (F) and their amounts are added. The important point is that the composition of P1a and P1b to be mixed already contains a filler.

[140] Preferably, the mixing of compositions P1 with halogenated polymer and filler is carried out by mixing in a dry state. Preferably, the dry mixture is also heated.

[141] The (meth)acrylic copolymer (A1), the mixture of two (meth)acrylic copolymers (A1a) and (A1b), the impact modifier (IM1), the halogenated polymer, and the mineral filler are as previously defined.

[142] Regarding the second embodiment of the method for preparing the polymer composition of the present invention, it includes the step

mixing two compositions P1a and P2a, characterized in that

composition P1a contains a (meth)acrylic copolymer (A1) and an impact modifier (IM1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and an impact modifier (IM1); and filler (F1), and

composition P2a contains a halogenated polymer and filler F2

where the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and that the amount of fillers F1+F2 is between 1 phr and 250 phr with respect to halogenated thermoplastic polymer.

[143] Regarding the third embodiment of the method for preparing the polymer composition of the present invention, it includes the step

mixing two compositions P1b and P2b, characterized in that

composition P1b contains a (meth)acrylic copolymer (A1) and/or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and an impact modifier (IM1); and filler (F1), and

composition P2b contains a halogenated polymer, impact modifier (IM1) and filler F2,

where the glass transition temperature Tg of the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) is less than 105°C and the amount of fillers F1+F2 is between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer.

[144] Fillers (F1) and (F2) may be the same or different. If excipients (F1) and (F2) are the same, they can be considered together simply as excipient (F) and their amounts are added to give the total amount in the composition of the present invention. The important point is that each of the two compositions P1a, P1b, P2a and P2b to be mixed already contains a filler.

[145] Preferably, mixing the two compositions P1a and P2a; P1b and P2b are carried out by dry mixing. Preferably, the dry mixture is also heated.

[146] The (meth)acrylic copolymer (A1), the mixture of two (meth)acrylic copolymers (A1a) and (A1b), the impact modifier (IM1), the halogenated polymer, and the mineral filler are as previously defined.

[147] Concerning the preparation method of composition P1b, it includes the step

a) mixing at least one (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) with at least one filler (F1),

where the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and the mineral filler in step a) are in the form of a dispersion in an aqueous phase.

[148] Preferably, a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) in the form of a dispersion in an aqueous phase is obtained by emulsion polymerization.

[149] Preferably, the filler in the form of a dispersion in the aqueous phase is a suspension of mineral filler, as described above.

[150] The (Meth)acrylic copolymer (A1) and the mineral filler are as previously defined.

[151] Regarding the variant of the method of preparing compositions P1b, it includes the steps

a) mixing at least one (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) with at least one filler (F) or (F1),

b) recovering the mixture obtained in step a),

c) drying the extracted mixture from step b),

where the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and the mineral filler in step a) are in the form of a dispersion in an aqueous phase.

[152] Recovery refers to the partial or complete separation of the aqueous and solid phases, said solid phase containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and a filler. In the case where complete separation of the aqueous and solid phases of the mixture has already taken place during the extraction stage, additional drying is not required. Or, in other words, the extraction and drying of the mixture take place at the same time.

[153] Preferably, recovery of the mixture of (meth)acrylic copolymer (A1) or mixture of two (meth)acrylic copolymers (A1a) and (A1b) and filler is carried out by spray drying, freeze drying or coagulation.

[154] The (meth)acrylic copolymer (A1), the mixture of two (meth)acrylic copolymers (A1a) and (A1b) and the filler are as previously defined.

[155] Preferably, recovery of the mixture of (meth)acrylic copolymer (A1) or mixture of two (meth)acrylic copolymers (A1a) and (A1b) with a filler is carried out by spray drying.

[156] Concerning the preparation method of composition P1a, it includes the step

a) mixing at least one (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) with an impact modifier (IM1) and at least one filler (F1 )

where the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), the impact modifier (IM1) and the mineral filler in step a) are in the form of a dispersion in an aqueous phase.

[157] Preferably, a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) in the form of a dispersion in an aqueous phase is obtained by emulsion polymerization.

[158] Preferably, the impact modifier (IM1) in the form of a dispersion in the aqueous phase is obtained by emulsion polymerization.

[159] Preferably, the filler in the form of a dispersion in the aqueous phase is a suspension of mineral filler, as described above.

[160] (Meth)acrylic copolymer (A1), impact modifier (IM1) and mineral filler are as previously defined.

[161] Regarding the variant of the method of preparing the composition P1a, it includes the steps

a) mixing at least one (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) with an impact modifier (IM1) and at least one filler (F ) or (F1),

b) recovering the mixture obtained in step a),

c) drying the extracted mixture from step b),

where the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), the impact modifier (IM1) and the mineral filler in step a) are in the form of a dispersion in an aqueous phase.

[162] Recovery refers to the partial or complete separation of the aqueous and solid phases, said solid phase containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and filler. In the case where complete separation of the aqueous and solid phases of the mixture already takes place during the extraction step, additional drying is not required. Or, in other words, the extraction and drying of the mixture take place at the same time.

[163] Preferably, recovery of the mixture of (meth)acrylic copolymer (A1) or mixture of two (meth)acrylic copolymers (A1a) and (A1b), impact modifier (IM1) and filler is carried out by spray drying, freeze drying or coagulation.

[164] The (meth)acrylic copolymer (A1), the blend of two (meth)acrylic copolymers (A1a) and (A1b), the impact modifier (IM1), and the filler are as previously defined.

[165] Preferably, the recovery of the mixture of (meth)acrylic copolymer (A1) or mixture of two (meth)acrylic copolymers (A1a) and (A1b), impact modifier (IM1) with filler is carried out by spray drying.

[166] A mixture of (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), and optionally an impact modifier (IM1) with a filler after drying, contains less than 3% of the mass. humidity, and preferably less than 1.5% of the mass. humidity, and more preferably, less than 1.2% of the mass. humidity.

[167] In the case of spray drying, it is possible to mix a dispersion of a mixture of (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), optionally an impact modifier (IM1) with a filler and a suspension or dispersion filler before adding the mixture to the spray dryer. It is also possible to mix a dispersion of a mixture of (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and optionally an impact modifier (IM1) with a filler and a suspension or dispersion of a mineral filler inside the dryer spraying during the extraction stage.

[168] Spray drying is the preferred recovery and/or drying method for the P1 formulation process.

[169] Composition P1a or P1b contains between 1% of the mass. and 50% wt., preferably between 2% wt. and 50% of the mass, and more preferably between 5% of the mass. and 50% of the mass. one filler (F) or (F1), in relation to the composition, as a whole, prepared from a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), optionally an impact modifier ( IM1) and a filler, P1b is prepared mainly from a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and a filler, and P1a is prepared mainly from a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a), an impact modifier (IM1) and (A1b) and a filler.

[170] If the composition contains other additional (meth)acrylic copolymers, they are taken into account when calculating the weight ratio of the filler, if they fall within the definition of (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) in the composition of the present invention.

[171] Composition P2a or P2b contains between 1 phr and 250 phr, preferably between 2phr and 200 phr of one excipient (F) or (F2).

[172] The present invention also relates to the use of a polymer composition P1a containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler (F) or (F1), to reduce the melting time of the composition containing the halogenated polymer and filler (F) or (F2).

[173] The present invention also relates to the use of a polymer composition P1a containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler F1, to reduce melting time of composition P2 containing halogenated polymer and filler F2.

[174] Preferably, the polymer composition P1a containing the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler F1, is in the form of a polymer powder.

[175] The polymer powder of composition P1a contains agglomerated spherical particles of (meth)acrylic copolymer (A1) or mixtures of two (meth)acrylic copolymers (A1a) and (A1b), impact modifier (IM1), and mineral filler particles.

[176] The polymer powder has a volume median particle size D50 between 1 µm and 500 µm. Preferably, the volume median particle size of the polymer powder is between 10 µm and 450 µm, more preferably between 15 µm and 400 µm, and preferably between 20 µm and 300 µm.

[177] The D10 value of the particle size distribution by volume is at least 7 µm, and preferably 10 µm.

[178] The D90 value of the particle size distribution by volume is at most 800 µm, and preferably at most 500 µm.

[179] The powder of the present invention is uniform in composition with respect to its components: (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), impact modifier (IM1) and mineral filler .

[180] Homogeneous according to the present invention means no significant variation in composition. If one or more small samples (1 g or less) containing several particles of powder grains are taken from a larger amount (1 kg) of the composition, then there is no significant variation in the composition regarding the mass ratio of the corresponding components in the small sample compared to other small samples and with the composition as a whole. By the absence of significant variation is meant that a spread of 1-% of the mass. sample P1a selected from P1a, in general, less than 30% in relation to the composition, as a whole. As an example, if the composition P1, as a whole, contains 40% of the mass. inorganic compound (F), 30% of the mass. (meth)acrylic copolymer (A1) and 30% of the mass. impact modifier (IM1), a small first sample taken from the composition as a whole, which would contain 30% of the mass. inorganic compound (F), 35% of the mass. (meth)acrylic copolymer (A1) and 35% of the mass. impact modifier (IM1), or a second small sample selected from the composition as a whole, which would contain 50% of the mass. inorganic compound (F), 26% of the mass. (meth)acrylic copolymer (A1) and 24% of the mass. impact modifier (IM1) would mean a homogeneous composition, since the spread of the ratio of the respective components for small samples is within a spread of 30% relative to the composition of the sample as a whole.

[181] Composition P1a is a uniform powder with no significant variation in composition P1a containing one (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and an impact modifier (IM1) , with at least one filler (F) or (F1), with a dispersion of the composition P1a, which is less than 30% relative to the composition P1a, in general, for 1-% of the mass. sample P1a taken from P1a.

[182] Preferably, the dispersion of the components in the composition is less than 25%, more preferably, less than 20%.

[183] Ideally, each powder particle or grain contains all three components of a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b), an impact modifier (IM1) and a filler, and consists of aggregated particles from these three components.

[184] The present invention also relates to the use of a polymer composition P1b containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and a filler (F) or (F1) to reduce the time melting the composition containing the halogenated polymer, impact modifier (IM1) and filler (F) or (F2).

[185] The present invention also relates to the use of a polymer composition P1b containing a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and filler F1, to reduce the melting time of the composition P2b containing a halogenated polymer, impact modifier (IM1) and filler F2.

[186] Preferably, the polymer composition P1b containing the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and filler F1 is in the form of a polymer powder.

[187] The polymer powder of composition P1b contains agglomerated spherical particles of (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and mineral filler particles.

[188] The polymer powder has a volume median particle size D50 between 1 µm and 500 µm. Preferably, the volume median particle size of the polymer powder is between 10 µm and 450 µm, more preferably between 15 µm and 400 µm, and preferably between 20 µm and 300 µm.

[189] The D10 value of the particle size distribution by volume is at least 7 µm, and preferably 10 µm.

[190] The D90 value of the particle size distribution by volume is at most 800 µm, and preferably at most 500 µm.

[191] The powder of the present invention is homogeneous in composition with respect to its components: (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and mineral filler.

[192] Homogeneous according to the present invention means the absence of significant variation in the composition. If one or more small samples (1 g or less) containing several particles of powder grains are taken from a larger amount (1 kg) of the composition, then there is no significant dispersion of the composition regarding the mass ratio of the corresponding components in the small sample compared to other small samples and the composition , generally. By the absence of significant variation is meant that the variation is less than 30% with respect to the composition, in general, in 1-% of the mass. P1b sample taken from P1b as a whole. As an example, if the composition P1, as a whole, contains 40% of the mass. inorganic compound (F) and 60% of the mass. (meth)acrylic copolymer (A1), the first small sample taken from the composition as a whole, which would contain 35% of the mass. inorganic compound (F) and 65% of the mass. (meth)acrylic copolymer (A1), or a second small sample taken from the composition as a whole, which would contain 42% of the mass. inorganic compound (F) and 58% of the mass. (meth)acrylic copolymer (A1), would mean a homogeneous composition, since the spread of the ratio of the respective components in small samples is within 30% of the spread relative to the composition of the sample as a whole.

[193] Composition P1b is a uniform powder with no significant variation in composition P1b containing one (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) with at least one filler (F) or (F1), with a dispersion of the composition P1b, which is less than 30% relative to the composition P1b, in general, for 1-% of the mass. sample P1b taken from P1b.

[194] Preferably, the dispersion of the components in the composition is less than 25%, more preferably, less than 20%.

[195] Ideally, each particle or grain of powder contains two components of a (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) and a filler and consists of aggregated particles of these two components .

[196] The present invention also relates to an article containing a polymer composition as described above. This product may be a profile, pipe, siding, film or flooring sheet or foam product.

Assessment Methods

[197] Glass Transition Temperature

The glass transition (Tg) of polymers or polymer blends is measured using equipment capable of performing thermomechanical analysis. The "RHEOMETRICS DYNAMIC ANALYSER" RDAII available from Rheometrics Company is used. Thermomechanical analysis accurately measures the viscoelastic changes in a sample as a function of temperature, stress, or applied strain. The frequency used is 1 Hz. The device continuously records the deformation of the sample, maintaining a fixed stress, during a controlled temperature change program.

The results are obtained by plotting as a function of temperature, elastic modulus (G'), loss modulus and tg delta. Tg is the higher temperature recorded on the tg delta curve when the derivative of tg delta is zero.

[198] Molecular weight

The weight average molecular weight (Mw) of the polymers is measured using size exclusion chromatography (SEC).

[199] Melting efficiency

The melting efficiency of the PVC polymer composition is evaluated by measuring the melting time with a torsion rheometer based on ASTM D2538-02 (reapproved in 2010). Shorter melting time means better melting efficiency.

[200] Impact resistance

ASTM D5420 is used to evaluate the impact resistance of a composition using a falling rod test. For comparison, normalized mean failure energy (in⋅lb/mil) is given.

Examples

[201] Abbreviations

[202] MMA - methyl methacrylate

[203] BA - n-butyl acrylate

[204] EA - ethyl acrylate

[205] PVC

[206] The filler for the (meth)acrylic copolymer (A1) or a mixture of two (meth)acrylic copolymers (A1a) and (A1b) as processing aid (PA) is calcium carbonate (CaCO ₃ ). A suspension or dispersion of CaCO ₃ is prepared according to the technology described in Japanese Patent No. 59057913. Namely, a suspension is obtained by mixing 270 parts of water, 0.72 parts of sodium polyacrylate and 729.3 parts of CaCO ₃ , particles with a diameter of 0.2-0.6 microns and at a moisture content of 0.6%, and stirring 5 times for 20 min at a shear rate of 102/sec. The resulting solids content is 73% of the mass.

[207] Comparative example 1: 8600 g of water, 5.23 g of Na ₂ CO ₃ and 38.20 g of sodium lauryl sulfate were charged into the reactor with stirring, and the mixture was stirred until completely dissolved. Three successive vacuum-nitrogen purges are carried out and the reactor is left at a low vacuum. Then the reactor is heated. At the same time, a mixture containing 4687.2 g of methyl methacrylate and 520.8 g of n-butyl acrylate was degassed with nitrogen for 30 minutes. The mixture is then rapidly introduced into the reactor using a pump. When the temperature of the reaction mixture reaches 55 degrees Celsius, 7.81 g of potassium persulfate dissolved in 98.08 g of water are introduced. The line is washed with 50 g of water. The reaction mixture is left at an increase in temperature to an exothermic peak. It is then left to complete polymerization within 60 minutes of the exothermic peak. The reactor is cooled to 30 degrees Celsius and the latex is removed. The latex is dried by spray drying.

[208] Example 1: 8600 g of water, 5.23 g of Na ₂ CO ₃ and 38.20 g of sodium lauryl sulfate are charged into the reactor with stirring, and the mixture is stirred until completely dissolved. Three successive vacuum-nitrogen purges are carried out and the reactor is left at a low vacuum. Then the reactor is heated. At the same time, a mixture containing 3645.6 g of methyl methacrylate and 1562.4 g of n-butyl acrylate was degassed with nitrogen for 30 minutes. The mixture is then rapidly introduced into the reactor using a pump. When the temperature of the reaction mixture reaches 55 degrees Celsius, 7.81 g of potassium persulfate dissolved in 98.08 g of water are introduced. The line is washed with 50 g of water. The reaction mixture is left at an increase in temperature to an exothermic peak. It is then left to complete polymerization within 60 minutes of the exothermic peak. The reactor is cooled to 30 degrees Celsius and the copolymer latex is removed. The resulting solids content is 37.55% of the mass. The final product is obtained by mixing copolymer latex and slurry in the following ratio: 7 kg (7000 parts) of latex and 2.40 kg (2400 parts) of slurry, and spray dried under the conditions classically used for latex alone.

[209] The characteristics of the PA samples of Comparative Example and Example are shown in Table 2.

[210] The obtained spray-dried samples of comparative examples and examples are prepared at 1.5 phr as processing aid (PA) in the PVC composition. The compositions are dry blended on Papenmeyer equipment at elevated temperatures. PVC compositions are prepared with 20 phr and 60 phr CaCO ₃ as filler in PVC, respectively.

[211] Table 1 - PVC compositions with two ratios of filler

Components Composition with quantities in phr PVC 100 100 1 pack CaZn four four CaCo ₃ twenty 60 IM1 four four PA from the respective Comparative Examples and Examples 1.5 1.5

[212] PVC S110P from Kemone was used as the PVC. Chemson's Ca/ZN Naftosafe GWX 380 D-3 was used as one package of stabilizer. As IM1, an acrylic impact modifier and core/sheath type particles are used.

[213] Samples are examined for melting efficiency using a torsional rheometer.

[214] The melting efficiency is evaluated with respect to the composition constituting Comparative Example 1. Comparative Example 1 is a processing aid composition without filler. Its melting efficiency is rated ++. All other examples or comparative examples that have a melting time in the range of +/-10 sec are also rated ++. If the melting time is less, in the range from -25 sec to -10 sec, the example is rated +++. If the melting time is less, in the range from -50 sec to -25 sec, the example is rated ++++. If the melting time is 50 sec less than that of Comparative Example 1 in the range up to -50 sec, the example is rated +++++. If the melting time is longer than that of Comparative Example 1 and 2 by at least +10 sec, it is evaluated as +.

[215] Results for melt efficiency are shown in Table 2.

[216] Table 2. Characteristics of PA obtained for the respective examples and comparative examples, and their evaluation of the melting efficiency in PVC compositions

PA Filler content in
PA/[wt%] Tg
PA /[°C] mw /
[*10 ⁶ g/mol] Melting efficiency 20 phr 60 phr Comparative Example 1 MMA/BA
90/10 0 107 4.5 ++ ++ Example 1 MMA/BA
70/30 40 72 4.5 ++++ ++

[217] Example 1 in Table 2 shows that the melting efficiency of the composition of (meth)acrylic copolymer (A1) containing filler in a filled halogen-containing thermoplastic polymer (PVC) performs the same or better than comparative examples, especially at a low content of filler in the composition.

[218] Table 3. Characteristics of PA obtained in the respective examples and comparative examples and their assessment of impact strength in the composition

PA Filler content in PA/[wt%] TgPA /[°C] mw /
[*10 ⁶ g/mol] Drop Weight Impact Strength, Gardner, ASTM D5420
[in⋅lb/mil (cm*kg/cm)] 20 phr 60 phr Comparative Example 1 MMA/BA
90/10 0 107 4.5 1.1 (495) 0.92 (414) Example 1 MMA/BA
70/30 40 72 4.5 1.37 (617) 0.89 (401)

[219] Example 1 in Table 3 shows that the impact strength of the low Tg (meth)acrylic copolymer (A1) composition containing a filler in an impact modifier-filled halogen-containing thermoplastic polymer (PVC) has a good compromise. At a low filler content of the composition (20 phr), the impact performance is much higher than for the high Tg (meth)acrylic copolymer (A1) processing aid (PA without filler is already in PA (comparative example 1). At higher filler content in the composition (60 phr), the impact strength characteristics are the same as the high Tg (PA) (meth)acrylic copolymer (meth)acrylic copolymer (A1) processing aid without filler already in PA (comparative example 1).

Claims (56)

1. Composition for the preparation of filled halogenated polymer compositions with modified impact strength, showing optimal behavior in the melt, containing: a) (meth)acrylic copolymer (A1), selected from a copolymer containing at least 50% of the mass. methyl methacrylate, b) filler (F), which is a mineral filler selected from calcium carbonate, calcined clay, silica (fine or precipitated), clay, montmorillonite (nanoclay), zeolite or perlite, c) a halogenated thermoplastic polymer, and d) an impact modifier (IM1) in an amount between 0.15 phr and 12 phr, which is a polymer particles having a multilayer structure, and the specified multilayer structure contains at least one layer (IM1L1) containing polymer (L1), having a glass transition temperature below 0°C and at least another layer (IM1L2) containing a polymer (L2) having a glass transition temperature above 45°C, characterized in that the glass transition temperature Tg of the (meth)acrylic copolymer (A1) is in the range from 65°C to 100°C and the amount of filler F is in the range between 1 phr and 250 phr with respect to the halogenated thermoplastic polymer, and characterized in that the weight ratio layer (IM1L1)/layer (IM1L2) in the polymer obtained by multi-stage polymerization is in the range, by weight, between 85/15 and 97/3, and containing from 0.01 phr to 20 phr (meth)acrylic copolymer (A1) relative to the halogen-containing thermoplastic polymer, and the molecular weight Mw of the (meth)acrylic copolymer (A1) containing at least 50% of the mass. polymer units derived from methyl methacrylate is at least 300,000 g/mol, and where the designation "phr" means the number of mass parts per hundred parts of the resin. 2. The composition according to claim 1, where part of the filler (F) is added to the composition with the (meth)acrylic copolymer (A1), and the other part of the filler (F) is added to the composition either separately or already together with the halogenated thermoplastic polymer. 3. Composition according to any one of claims 1, 2, wherein the content of (meth)acrylic copolymer (A1) in relation to the halogenated thermoplastic polymer is between 0.05 and 17 phr, preferably between 0.1 phr and 15 phr, more preferably , between 0.15 phr and 12 phr, and preferably between 0.15 phr and 10 phr. 4. Composition according to any one of claims 1, 2, wherein the content of (meth)acrylic copolymer (A1) in relation to the halogenated thermoplastic polymer is from 0.15 phr to 4 phr. 5. Composition according to any one of claims 1 to 4, wherein at least part of the filler (F) is calcium carbonate. 6. The composition of claim 5, wherein the filler (F) is calcium carbonate selected from precipitated calcium carbonate (PCC), ground natural calcium carbonate (GCC) or nanoparticles precipitated calcium carbonate (NPCC). 7. Composition according to any one of claims 1 to 4, wherein the (meth)acrylic copolymer (A1) contains monomers selected from C1-C12 alkyl (meth)acrylates, preferably the (meth)acrylic comonomer in polymer (A1) contains C1 monomers -C4 alkyl methacrylate and/or C1-C8 alkyl acrylate monomers. 8. The composition according to any one of claims 1 to 4, where the molecular weight Mw of the (meth)acrylic copolymer (A1) containing at least 50% of the mass. polymer units derived from methyl methacrylate is at least 500,000 g/mol. 9. The composition according to claim 8, where the molecular weight Mw of the (meth)acrylic copolymer (A1) containing at least 50% of the mass. polymer units derived from methyl methacrylate is in the range from 1000000 g/mol to 12000000 g/mol. 10. The composition according to any one of claims 1 to 9, wherein the glass transition temperature Tg of the (meth)acrylic copolymer (A1) is in the range from 70°C to 100°C. 11. The composition according to any one of claims 1 to 10, where the impact strength modifier (IM1) in the form of polymer particles having a multilayer structure is a core/shell polymer, and the weighted average particle size (diameter) has a value of between 20 nm and 500 nm. 12. The composition according to any one of claims 1 to 11, where the halogen-containing thermoplastic polymer is selected from a homo- or copolymer of vinyl chloride containing at least 50% of the mass. vinyl chloride units. 13. A method for producing a composition according to claims 1 to 12, comprising the step of mixing with a halogen-containing thermoplastic polymer and filler (F) of the composition P1a, characterized in that composition P1a contains (meth)acrylic copolymer (A1), impact modifier (IM1) and filler (F), and wherein the glass transition temperature Tg of the (meth)acrylic copolymer is in the range of 65°C to 100°C, and the amount of fillers (F) is in the range of 1 phr to 250 phr with respect to the halogenated thermoplastic polymer. 14. A method for obtaining a composition according to claims 1 to 12, including the step mixing with halogenated thermoplastic polymer, impact modifier (IM1) and filler (F) composition P1b, characterized in that composition P1b contains (meth)acrylic copolymer (A1) and filler (F), and wherein the glass transition temperature Tg of the (meth)acrylic copolymer is in the range of 65°C to 100°C, and the amount of fillers (F) is in the range of 1 phr to 250 phr with respect to the halogenated thermoplastic polymer. 15. A method for producing a composition according to claims 1 to 12, comprising the step of mixing two compositions P1a and P2a, characterized in that composition P1a contains (meth)acrylic copolymer (A1, impact modifier (IM1) and filler F, and composition P2a contains a halogenated thermoplastic polymer and filler F, characterized in that the glass transition temperature Tg of the (meth)acrylic copolymer (A1) is in the range from 65°C to 100°C, and the amount of fillers F is in the range from 1 phr to 250 phr with respect to the halogen-containing thermoplastic polymer. 16. A method for obtaining a composition according to claims 1 to 12, including the step mixing two compositions P1b and P2b, characterized in that composition P1b contains (meth)acrylic copolymer (A1) and filler F, and composition P2b contains a halogenated thermoplastic polymer, impact modifier (IM1) and filler F, characterized in that the glass transition temperature Tg of the (meth)acrylic copolymer (A1) is in the range from 65°C to 100°C, and the amount of fillers F is in the range from 1 phr to 250 phr with respect to the halogen-containing thermoplastic polymer. 17. The method according to claim 14 or 16, characterized in that the P1b composition is obtained using a manufacturing method comprising the step a) mixing at least one (meth)acrylic copolymer (A1) with at least one filler (F), where the (meth)acrylic copolymer (A1) and the filler (F) in step a) are in the form of a dispersion in an aqueous phase. 18. The method according to claim 14 or 16, characterized in that the P1b composition is obtained using a manufacturing method comprising the step a) mixing at least one (meth)acrylic copolymer (A1) with at least one filler (F), b) isolating the mixture obtained in step a), c) drying the mixture isolated from step b), where the (meth)acrylic copolymer (A1) and the filler in step a) are in the form of a dispersion in an aqueous phase. 19. The method according to claim 13 or 15, characterized in that the composition P1a is obtained using a manufacturing method comprising the step a) mixing at least one (meth)acrylic copolymer (A1) with an impact modifier (IM1) and at least one filler (F), where the (meth)acrylic copolymer (A1), the impact modifier (IM1) and the filler in step a) are in the form of a dispersion in an aqueous phase. 20. The method according to claim 13 or 15, characterized in that the composition P1a is obtained using a manufacturing method comprising the steps a) mixing at least one (meth)acrylic copolymer (A1) with an impact modifier (IM1) and at least one filler (F), b) isolating the extract of the mixture obtained in step a), c) drying the mixture isolated from step b), where the (meth)acrylic copolymer (A1), the impact modifier (IM1) and the filler in step a) are in the form of a dispersion in an aqueous phase. 21. The method according to any one of paragraphs.13-20, characterized in that the composition P1b or P1a contains in the range of 1% of the mass. up to 50% wt., preferably from 2% wt. up to 50% wt., and more preferably from 5% wt. up to 50% wt. filler (F) relative to the composition as a whole, and P1b is made of (meth)acrylic copolymer (A1) and filler, or P1a is made of (meth)acrylic copolymer (A1), impact modifier (IM1) and filler. 22. The method according to any one of claims 13-21, characterized in that the composition P1a or P1b is a homogeneous powder, not having a significant spread in the composition of the P1b composition containing one (meth)acrylic copolymer (A1 with at least one filler (F); and composition composition P1b containing one (meth)acrylic copolymer (A1, impact modifier (IM1), with at least one filler (F); with composition spread of compositions P1a and P1b, which is less than 30 % relative to the composition of compositions P1a and P1b as a whole, for a 1 wt % sample of P1a and P1b taken from P1a and P1b, respectively. 23. The method according to any one of claims 13 to 22, characterized in that the glass transition temperature Tg of the (meth)acrylic copolymer (A1) is in the range from 70°C to 100°C. 24. An article containing a composition according to any one of claims 1-12 or a composition obtained by a method according to any one of claims 13-22. 25. The product according to claim 24, characterized in that the product is a profile, pipes, siding, film or flooring sheet.