# US 12,215,213 B2 · Thermoplastic moulding compound

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- Number: US 12,215,213 B2
- Document ID: US12215213B2
- Status: Granted
- Kind: B2
- Application number: 17/432,540
- Filed: 2020-02-18
- Published: 2022-06-16
- Granted: 2025-02-04
- Earliest claimed: 2019-02-20
- Assignees: BASF SE
- Applicants: BASF SE
- Inventors: Jens Cremer; Patrick Spies
- Web page: https://patentgrep.com/patent/US12215213B2

## CPC

- C08K 7/14: Glass
- C03C 3/087: containing calcium oxide, e.g. common sheet or container glass
- C03C 13/00: Fibre or filament compositions (manufacture of fibres or filaments C03B37/00)
- C08L 77/02: Polyamides derived from omega-amino carboxylic acids or from lactams thereof (C08L77/10 takes precedence)
- C08L 77/06: Polyamides derived from polyamines and polycarboxylic acids (C08L77/10 takes precedence)
- C03C 2213/00: Glass fibres or filaments
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

Described herein is a method of using glass fibers having a tensile strength according to DIN ISO 527-5 of 86.0 to 92.0 GPa, a tensile elastic modulus according to DIN ISO 527-5 of 2600 to 3200 MPa and a softening point according to DIN ISO 7884-1 of 900° C. to 950° C., the method including using the glass fibers to increase an impact strength and/or breaking elongation of molded articles made of molding materials including thermoplastic polyamides and elastomers.

## Claims

### Claim 1

A method of using glass fibers having a tensile strength according to DIN ISO 527-5 of 86.0 to 92.0 GPa, a tensile elastic modulus according to DIN ISO 527-5 of 2600 to 3200 MPa and a softening point according to DIN ISO 7884-1 of 900° C. to 950° C., the method comprising using the glass fibers to increase an impact strength and/or breaking elongation of molded articles made of molding materials comprising thermoplastic polyamides and elastomers;
wherein the method comprises mixing components A) to C) and optionally D):
a) 30.0% to 89.0% by weight of at least one thermoplastic polyamide as component A),
b) 1.0% to 30.0% by weight of at least one elastomer as component B), selected from the group consisting of
b1) copolymers of ethylene with at least one comonomer selected from the group consisting of C3-12-olefins, C1-12-alkyl (meth)acrylates, (meth)acrylic acid and maleic anhydride as component B1),
b2) polyethylene or polypropylene elastomer as component B2),
wherein components B1) and B2) may also be additionally grafted with maleic anhydride,
c) 10.0% to 69.0% by weight of glass fibers having a tensile strength according to DIN ISO 527-5 of 86.0 to 92.0 GPa, a tensile elastic modulus according to DIN ISO 527-5 of 2600 to 3200 MPa and a softening point according to DIN ISO 7884-1 of 900° C. to 950° C. as component C), and
d) 0% to 30.0% by weight of further additives and processing aids as component D),
wherein the percentages by weight of the components A) to D) sum to 100% by weight,
and further comprises extruding, injection molding or blow molding thermoplastic molding material to produce fibers, films, or molded articles made of the thermoplastic molding material.

### Claim 2 (depends on 1)

The method according to claim 1, wherein glass fibers having the composition
C1) 55.5% to 62.0% by weight of SiO2,
C2) 14.0% to 18.0% by weight of Al2O3,
C3) 11.0% to 16.0% by weight of CaO,
C4) 6.0% to 10.0% by weight of MgO, and
C5) 0% to 4.0% by weight of further oxides
are employed,
wherein the proportions of C3) CaO and C4) MgO sum to between 17.0% and 24.0% by weight and the percentages by weight of C1) to C5) sum to 100% by weight.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the thermoplastic molding materials comprise at least one elastomer selected from the group consisting of
b1) copolymers of ethylene with at least one comonomer selected from the group consisting of C3-12-olefins, C1-12-alkyl (meth)acrylates, (meth)acrylic acid and maleic anhydride as component B1), and
b2) polyethylene or polypropylene elastomer as component B2),
wherein components B1) and B2) may also be additionally grafted with maleic anhydride.

### Claim 4

A thermoplastic molding material comprising
a) 30.0% to 89.0% by weight of at least one thermoplastic polyamide as component A),
b) 1.0% to 30.0% by weight of at least one elastomer as component B), selected from the group consisting of
b1) copolymers of ethylene with at least one comonomer selected from the group consisting of C3-12-olefins, C1-12-alkyl (meth)acrylates, (meth)acrylic acid and maleic anhydride as component B1),
b2) polyethylene or polypropylene elastomer as component B2),
wherein components B1) and B2) may also be additionally grafted with maleic anhydride,
c) 10.0% to 69.0% by weight of glass fibers having a tensile strength according to DIN ISO 527-5 of 86.0 to 92.0 GPa, a tensile elastic modulus according to DIN ISO 527-5 of 2600 to 3200 MPa and a softening point according to DIN ISO 7884-1 of 900° C. to 950° C. as component C), and
d) 0% to 30.0% by weight of further additives and processing aids as component D),
wherein the percentages by weight of the components A) to D) sum to 100% by weight.

### Claim 5 (depends on 4)

The molding material according to claim 4, wherein a component C) having the composition
C1) 55.5% to 62.0% by weight of SiO2,
C2) 14.0% to 18.0% by weight of Al2O3,
C3) 11.0% to 16.0% by weight of CaO,
C4) 6.0% to 10.0% by weight of MgO, and
C5) 0% to 4.0% by weight of further oxides
is employed,
wherein the proportions of C3) CaO and C4) MgO sum to between 17.0% and 24.0% by weight and the percentages by weight of C1) to C5) sum to 100% by weight.

### Claim 6 (depends on 4)

The molding material according to claim 4, wherein component D) comprises heat stabilizers, carbon black and lubricants.

### Claim 7 (depends on 4)

The molding material according to claim 4, wherein component B) is employed in an amount of 2.0% to 20.0% by weight.

### Claim 8 (depends on 4)

The thermoplastic molding material according to claim 4, wherein component A) is selected from the group consisting of polyamide 6, polyamide 66, polyamide 6.10 and copolymers or mixtures thereof.

### Claim 9 (depends on 4)

The molding material according to claim 4, wherein component C) is employed in an amount of 10.0% to 55.0% by weight.

### Claim 10 (depends on 4)

The molding material according to claim 4, which comprises component B1) in which the at least one comonomer is selected from the group consisting of C3-8-olefins, C2-6-alkyl acrylates, and maleic anhydride.

### Claim 11 (depends on 4)

The molding material according to claim 4, which comprises the component B1) and/or B2) grafted with maleic anhydride.

### Claim 12 (depends on 4)

A process for producing a thermoplastic molding material according to claim 4, the process comprising mixing the components A) to C) and optionally D).

### Claim 13 (depends on 4)

A fiber, film or molded article made of the thermoplastic molding material according to claim 4.

### Claim 14 (depends on 4)

A process for producing fibers, films or molded articles made of the thermoplastic molding material according to claim 4, the process comprising extruding, injection molding or blow molding the thermoplastic molding material.

### Claim 15 (depends on 4)

The molding material according to claim 4, wherein component B) is employed in an amount of 3.0% to 10.0% by weight.

### Claim 16 (depends on 4)

The molding material according to claim 4, wherein component B) is employed in an amount of 3.5% to 7.0% by weight.

### Claim 17 (depends on 4)

The molding material according to claim 4, wherein component C) is employed in an amount of 15.0% to 50.0% by weight.

### Claim 18 (depends on 4)

The molding material according to claim 4, wherein component C) is employed in an amount of 25.0% to 40.0% by weight.